Department of Defense Standardization Program ASSIST UPDATE

Transcription

1 Department of Defense Standardization Program (A bi-monthly summary of changes to the ASSIST document database) 1 August 2015 (For the Period 15 July 2015 to 31 July 2015)

2 Documents listed in the have an indicator of N or M to describe the last action taken on a listed document. N indicates that a new document has been entered into the ASSIST database. M indicates that a document already in ASSIST has been modified in some way. The is published twice a month and provides a summary of changes to Department of Defense standardization documents for the period indicated. Since changes are processed to the ASSIST database on a daily basis, users should consult the ASSIST web site at for the most current information. If you need to track changes more frequently, or if you have an interest in specific Federal Supply Classes or individual specifications, standards, or other standardization documents, you may wish to take advantage of the ASSIST Alert Service. This feature lets you establish a list of documents of interest to you, and then the ASSIST will alert you with an message each day there is a change to one or more documents of interest to you. There is no charge for this service; however, you must have an ASSIST user account. To obtain one, complete the ASSIST online registration form at Once you have your account, you can establish your Alert Portal profile. For more information on the ASSIST Alert Service, go to: ii

3 ACTIVE SECTION M A-A-59196A Truck, Aircraft Servicing (AST), 3 Ton High Lift for Loading C-5 Aircraft Upper Deck [CUST: 184] A 2320 / JUL-2015 [REVIEW: 99] M A-A-52559A NOT 1 Guard, Roadway Crossing (Metric) [CUST: AT] [REVIEW: CC] A 3835 / AT 24-JUL-2015 M A-A-59955A Conveyor, Roller, Gravity, Dock, High-Line, Conveyorized [CUST: 184] [REVIEW: 99 FAS MI] A 3910 / JUL-2015 M A-A-60004B Truck, Lift, Platform, Engine-Driven, Telescoping Boom [CUST: AT 84] [REVIEW: 99 CC IS SH] A 3930 / JUL-2015 M MIL-STD-282A(1) NOT 1 Filter Units, Protective Clothing, Gas-Mask Components and Related Products: Performance Test A 4240 EA 30-JUN-2015 Methods [CUST: EA SH] [REVIEW: YD] M MIL-DTL-20176H(1) Hose and Hose Assembly, Rubber, Smooth Bore, Light-Weight Sewage Discharge and Oily Waste A 4720 CC 16-JUL-2015 Discharge [CUST: CR4 YD CC] [REVIEW: SH] M A-A NOT 2 Hammer, Pneumatic, Portable, Nail-Driving [CUST: AT YD 99] [REVIEW: 84 GL GS] A 5130 / AT 17-JUL-2015 M MS16625E Ring, Retaining, Internal, Basic (Tapered Section Type) [CUST: AR OS 99] [REVIEW: AV MI] A 5325 IS 08-JUL-2015 N MIL-PRF Expeditionary Shelter Protection System (ESPS) Panel Module [CUST: GL] [REVIEW: DH] A 5450 GL 22-JUL-2015 N MIL-PRF Insulation, Anti-Sweat, Refrigerant, and Thermal Foam [CUST: MI SH 99 IS] [REVIEW: AS A 5640 SH 12-JUN-2015 CE FAS] M MIL-PRF-29C(1) Resistor, Fixed, Meter Multiplier, External (High Voltage, Ferrule Terminal Type) [CUST: CR EC A 5905 CC 10-JUL CC] [REVIEW: AR AS AT AV CG CR4 MC MI OS] M QPL Resistors, Fixed, Wire Wound (Power Type), Nonestablished Reliability, Established Reliability, and A 5905 CR 24-JUL-2015 Space Level, General Specification for M MIL-PRF-39012/3H(2) Connectors, Receptacles, Electrical, Coaxial, Radio Frequency (Series N (Cabled), Jam Nut A 5935 CC 02-JUN-2015 Mounted, Socket Contact, Class 2) [CUST: CR EC 85 CC NA] [REVIEW: AR AS AT EA MC MI OS SH] M MIL-DTL-28840/9G(1) Connectors, Electrical, Circular, Threaded, High Shock, High Density, Shipboard, Backshell, 45 A 5935 CC 22-JUL-2015 Degrees, Cable Sealing and Shield Termination [CUST: AT EC 85 CC] [REVIEW: 99 AV MI] M MIL-DTL-38159D Connectors, Electric, Ramp Power, 416/240 Volts [CUST: 85 CC] [REVIEW: 99] A 5935 CC 22-JUL-2015 M MIL-DTL-83723/61F(2) Connectors, Electrical, (Circular, Environment Resisting), Dummy Stowage Receptacles, (for MIL- A 5935 CC 22-JUL-2015 DTL and MIL-DTL-83723, Series III, Classes A, M, R, T, W and Z) [CUST: CR AS 85 CC] [REVIEW: AR EC MI] M QPL Crystal Units, Quartz, General Specification for A 5955 CR 16-JUL-2015 M MIL-PRF-19500/343L Transistor, NPN, Silicon, Low Power, Encapsulated (through-hole and Surface Mount), and A 5961 CC 22-JUL-2015 Unencapsulated, Radiation Hardness Assurance, Types 2N2857 and 2N2857UB, Quality Levels JAN, JANTX, JANTXV, JANS, JANHC, and JANKC [CUST: CR EC 85 CC NA] [REVIEW: AS MC MI SM] M MIL-PRF-19500/395L Transistor, NPN, Silicon, Switching, Encapsulated (Through-Hole and Surface Mount) Types A 5961 CC 30-JUL N3735 and 2N3737 Quality Levels JAN, JANTX, JANTXV, JANS [CUST: CR EC 85 CC NA] [REVIEW: AR AS AV MC MI SM] M MIL-PRF-19500/616H Diode, Silicon, Power Rectifier, Dual, Common Cathode or Anode Center Tap, Ultrafast, Types A 5961 CC 16-JUL N6657 through 1N6659 JAN, JANTX, JANTXV, and JANS [CUST: CR EC 85 CC NA] [REVIEW: AR AS MC MI SM] M MIL-PRF-19500/623E Transistor, Darlington, PNP Silicon, High-Power Type 2N7371 JAN, JANTX, JANTXV, and JANS A 5961 CC 23-JUL-2015 [CUST: CR EC 85 CC NA] [REVIEW: AR AS MI SM] M MIL-DTL-39030/7A(1) NOT 1 Dummy Loads, Electrical, Coaxial, Type III (BNC), Low Power [CUST: CR EC 85 CC] [REVIEW: A 5985 CC 10-JUL AS AV MC MI OS SH] M MIL-DTL-39030/11A(1) NOT 1 Dummy Load, Electrical, Coaxial, Type V (N), High Power [CUST: CR EC 85 CC] [REVIEW: 11 A 5985 CC 10-JUL AS AV MC MI OS SH] M MIL-DTL-39030/13B(1) NOT 1 Dummy Load, Electrical, Type XIV (Socket Contact), Stripline, Low Power [CUST: CR EC 85 CC] A 5985 CC 10-JUL-2015 [REVIEW: AS AV MC MI OS SH] M MIL-DTL-39030/14B(1) NOT 1 Dummy Load, Electrical, Type XIV (Bifurcated Contact), Stripline, Low Power [CUST: CR EC 85 A 5985 CC 10-JUL-2015 CC] [REVIEW: AS AV MC MI OS SH] M MIL-DTL-39030/16B(1) NOT 1 Dummy Load, Electrical, Type XIV (Bifurcated Contact), Stripline, Low Power [CUST: CR EC 85 A 5985 CC 10-JUL-2015 CC] [REVIEW: AS AV MC MI OS SH] M MIL-DTL-39030/22A(1) Dummy Load, Electrical, Type XIV (Tab Contact), Stripline, High Power [CUST: CR EC 85 CC] A 5985 CC 10-JUL-2015 [REVIEW: AS AV MC MI OS SH] M A-A-59789/1B Holder, Electrical Card, Wedge Retainers, 5 Piece, for Cold Plate Applications, 225 X 260 Inch A 5998 / CC 11-JUL-2015 Body Size, Wedge Mounting Body, with Mounting Holes, Screw Actuation and Retention [CUST: CR EC 85 CC] [REVIEW: 99] M A-A-59789/2B Holder, Electrical Card, Wedge Retainers, 5 Piece, for Cold Plate Applications, 225 X 260 Inch A 5998 / CC 12-JUL-2015 Body Size, Wedge Mounting Body, with Two Mounting Holes and Visual Lock Indication, with Screw Actuation and Retention [CUST: CR EC 85 CC] [REVIEW: 99] M A-A-59789/3B Holder, Electrical Card, Wedge Retainers, 5 Piece, for Cold Plate Applications, 225 X 225 Inch A 5998 / CC 13-JUL-2015 Body Size, Wedge Mounting Body, with two Mounting Holes, with Screw Actuation and Retention [CUST: CR EC 85 CC] [REVIEW: 99] M A-A-59789/4B Holder, Electrical Card, Wedge Retainers, 5 Piece, for Cold Plate Applications, 225 X 225 Inch A 5998 / CC 14-JUL-2015 Body Size, Wedge Mounting Body, with Two Mounting Holes, Visual Lock Indication, and Screw Actuation and Retention [CUST: CR EC 85 CC] [REVIEW: 99] M A-A-55507/1C Clip, Electrical, Fuse, 30 and 60 Ampere, for Fuse Diameters 1/4 Inch thru 13/16 Inch [CUST: CR A 5999 / CC 28-JUL-2015 SH 85 CC] M A-A-55507/2B Clip, Electrical, Fuse, P C Board, 15 and 30 Ampere, for Fuse Diameter 1/4 Inch [CUST: CR SH 99 A 5999 / CC 14-JUL-2015 CC] [REVIEW: 85] M QPL-AS29606 NOT 1 Wire, Electrical, Stranded, Uninsulated Copper, Copper Alloy, or Aluminum, or Thermocouple A 6145 AS 15-JUL-2015 Extension, General Specification for M MIL-DTL-14650/1Z Streamers, Army Set [CUST: IH] [REVIEW: CT] A 8345 IH 20-JUL-2015 M MIL-DTL-3628/120B Badge, Identification, Recruiting Service, U S Air Force [CUST: IH 11] [REVIEW: CT] A 8455 IH 27-JUL-2015 M MIL-DTL-3628/255A Badge, Occupational, Remotely Piloted Aircraft Sensor Operator, U S Air Force [CUST: IH 11] A 8455 IH 20-JUL-2015 [REVIEW: CT] M MIL-DTL-3943/214C Medal, Good Conduct, U S Coast Guard Reserve [CUST: IH CG1] [REVIEW: CT] A 8455 IH 20-JUL-2015 M MIL-DTL-11589/79F Ribbon, Guidon Streamer, Leading Platoon Award, U S Coast Guard Reserve [CUST: IH CG1] A 8455 IH 27-JUL-2015 [REVIEW: CT] M MIL-DTL-11589/86F Ribbon, Medal for Merit [CUST: IH MC 11] [REVIEW: CG1 CT] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/97G Ribbon, National Defense Service Medal [CUST: IH NU 11] [REVIEW: CG1 CT MC] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/107G Ribbon, Unit Commendation, U S Navy [CUST: IH NU] [REVIEW: CG1 CT MC] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/119H Ribbon, Philippine Defense [CUST: IH MC 11] [REVIEW: CG1 CT] A 8455 IH 27-JUL

4 ACTIVE SECTION M MIL-DTL-11589/120F Ribbon, Philippine Independence [CUST: IH MC 11] [REVIEW: CG1 CT] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/121F Ribbon, Philippine Liberation [CUST: IH MC 11] [REVIEW: CG1 CT] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/122F Ribbon, Philippine Presidential Unit Citation [CUST: IH MC 11] [REVIEW: CG1 CT] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/126F Ribbon, Purple Heart [CUST: IH NU 11] [REVIEW: CG1 CT MC] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/129F Ribbon, Revolutionary War [CUST: IH MC 11] [REVIEW: CG1 CT] A 8455 IH 27-JUL-2015 M MIL-DTL-11589/231F Ribbon, Commander's Award for Civilian Service, U S Army [CUST: IH] [REVIEW: CT] A 8455 IH 20-JUL-2015 M MIL-DTL-11589/274F Ribbon, Achievement Medal, U S Air Force [CUST: IH 11] [REVIEW: CT] A 8455 IH 20-JUL-2015 M MIL-DTL-11589/275E Ribbon, Air Force Training [CUST: IH 11] [REVIEW: CT] A 8455 IH 20-JUL-2015 M MIL-DTL-11589/276E Ribbon, Air Force Recognition [CUST: IH 11] [REVIEW: CT] A 8455 IH 20-JUL-2015 M MIL-DTL-11589/277E Ribbon, Air Force Overseas [CUST: IH 11] [REVIEW: CT] A 8455 IH 20-JUL-2015 M MIL-DTL-11589/282E Ribbon, Army Overseas Service [CUST: IH] [REVIEW: CT] A 8455 IH 20-JUL-2015 M A-A-20135E Sugar, White, Refined, and Sugar, Brown [CUST: GL SA 35 SS] [REVIEW: MC MD QM] A 8925 / SS 03-JUN-2015 M MIL-C-3031J NOT 1 Cocoa Beverage Powder [CUST: GL SA 35] [REVIEW: MC MD MS SS TS] A 8955 GL 30-JUL-2015 M MIL-PRF-17672E NOT 1 Hydraulic Fluid, Petroleum, Inhibited [CUST: GL SH 68] [REVIEW: AS AT CR4 GS] A 9150 SH 24-JUL-2015 M MIL-DTL-46100E(2) NOT 2 Armor Plate, Steel, Wrought, High-Hardness [CUST: MR] [REVIEW: AR AT IS TE] A 9515 MR 21-JUL-2015 N MIL-DTL Rod, Bar, and Billet, Titanium Alloy TI-5111 for Use in Critical Seawater Application [CUST: MI A 9530 SH 07-JUL-2015 SH 99] [REVIEW: AS FAS IS MR] M DI-NUOR-81407C Aircraft Mechanical Interface Control Drawing (MICD) [AMSC: F9569] A NUOR JUL-2015 M MIL-STD-3024(1) NOT 1 Propulsion System Integrity Program (PSIP) [CUST: AV AS 11] [REVIEW: AR] A SESS JUL-2015 M MIL-STD (1) Soldier Radio Waveform Soldier System Combat Communications Mode [CUST: CR EC 02] D TCSS CR 02-JUL-2015 [REVIEW: CR2 DC1 NS] 2

5 INACTIVE SECTION M AN6249 REV 2 NOT 3 Valve, 3000 PSI Hydraulic Check [CUST: AV AS] [REVIEW: MI] A 1650 AS 21-JUL-2015 M AN6280 REV 2 NOT 3 Valve and 3000 PSI Hydraulic Check Internal Parts [CUST: AV AS] [REVIEW: MI] A 1650 AS 21-JUL-2015 M MIL-PRF-62140B(1) NOT 2 Engine Diesel: Liquid-Cooled, V-Type, 6-Cylinder, 210 H P [CUST: AT] [REVIEW: CC] A 2815 AT 13-JUL-2015 M MS39323B Fitting, Tube, Reducer: 37 Degree Flare [CUST: AT SH 99 CC] [REVIEW: 71 AR CG MC SA] A 4730 CC 25-JUN-2015 M MS39324B Adapter, 37 Degree, Flare to "O" Ring Boss, 45 Degree Flare [CUST: AT SH 99 CC] [REVIEW: 71 A 4730 CC 25-JUN-2015 AR CG MC SA] M MS51500D Fittings, Hydraulic Tube, Flared 37 Degree and Flareless, Adapter, Straight, Pipe to Tube, Male End, A 4730 CC 25-JUN Degree Flared [CUST: AT SH 99 CC] [REVIEW: 71 AR AS CG MC SA] M MS51501B Nipple Tube, Regular Hex, 37 Degree Flared, Short [CUST: AT SH 99 CC] [REVIEW: 71 AR AS A 4730 CC 25-JUN-2015 CG MC SA] M MS51502B Nipple Tube, Regular Hex, 37 Degree Flared, Long [CUST: AT SH 99 CC] [REVIEW: 71 AR CG A 4730 CC 25-JUN-2015 MC SA] M MIL-PRF-83766B NOT 1 Filler and Pressurization Unit, Hydraulic System [CUST: MR 184] [REVIEW: 99] A JUL-2015 M MIL-DTL-6749B(2) Resistor, Variable, Wirewound, Nonprecision, Aircraft Power [CUST: CR AS 85 CC] A 5905 CC 10-JUL-2015 M MIL-PRF-1/296E NOT 1 Electron Tube, Reference Cavity Types 1Q22, 1Q23, 1Q24, 5846, 6040, 6041 [CUST: CR EC 85 A 5960 CC 18-JUL-2015 CC] [REVIEW: AR MI SH] M MIL-PRF-1/338J NOT 1 Electron Tube, Transmitting Type 2E26 [CUST: CR EC 85 CC] [REVIEW: AR AS CG MC MI OS] A 5960 CC 18-JUL-2015 M MIL-PRF-1/374F NOT 1 Electron Tube, Klystron Type 2K48 [CUST: CR EC 85 CC] [REVIEW: AS CG MC MI OS] A 5960 CC 18-JUL-2015 M MIL-PRF-1/597F NOT 1 Electron Tube, Photomultiplier Type 931VA [CUST: CR EC 85 CC] [REVIEW: 99 CG MC MI OS] A 5960 CC 18-JUL-2015 M MIL-PRF-1/1147C NOT 1 Electron Tube, Microwave Noise Source Type 6782 [CUST: CR CC] [REVIEW: MI] A 5960 CC 18-JUL-2015 M MIL-PRF-1/1298E NOT 1 Electron Tube, Phototube Type CE-75V [CUST: CR EC 85 CC] [REVIEW: 99 AS CG CR4 MC MI A 5960 CC 18-JUL-2015 OS] M MIL-PRF-1/1350G NOT 1 Electron Tube, Power Type 8295A [CUST: CR EC 85 CC] [REVIEW: 99 AS CG CR4 MC MI OS] A 5960 CC 18-JUL-2015 M MIL-PRF-1/1405E NOT 1 Electron Tube, Traveling Wave Type 7640 [CUST: CR EC 85 CC] [REVIEW: 99 AR AS CG MC A 5960 CC 18-JUL-2015 MI OS SH] M MIL-PRF-1/1688C NOT 1 Electron Tube, Magnetron Type 8798 [CUST: 85 CC] [REVIEW: 99] A 5960 CC 18-JUL-2015 M MIL-PRF-19500/180E(1) Transistor, NPN, Silicon, Medium-Power, Through-Hole Mount Package, Types 2N1483, 2N1484, A 5961 CC 18-JUL N1845, and 2N1486, Quality Levels JAN, JANTX, JANTXV [CUST: CR EC 85 CC] [REVIEW: AR AS AV CG MC MI OS SH SM] M MS24378G Transmitter, Synchro, Angle of Attack or Sideslip [CUST: 85 CC] [REVIEW: GS] A 5990 CC 10-JUL-2015 M MIL-DTL-52286D SUP 1 NOT 1 Cable Assemblies, Power, Electrical (with Molded on Terminations), General Specifications for A 6150 GS1 21-JUL-2015 [CUST: CR4 GS] [REVIEW: AT] M MIL-DTL-52286/22A NOT 1 Cable Assembly, Power Electrical, Adapter [CUST: CR4 GS] [REVIEW: AT] A 6150 GS1 21-JUL-2015 M MIL-PRF-3043C NOT 1 Resin Coating, Permanent, for Engine Components and Metal Parts [CUST: MR SH 184] A JUL-2015 [REVIEW: AS AT AV OS SA] 3

6 CANCELED SECTION M MIL-T-46744E NOT 2 Trailers, Maintenance: 454 and 910 Kilogram (1000 and 2000 Pound) Payload, Two Wheel, A 2330 AT 15-JUL-2015 Modified Commercial (No S/S Document) [CUST: AT] M MIL-T-46791D NOT 2 Trailers, Cargo: 500, 2,000 and 3,000 Pound Payload, 2 Wheel, Modified Commercial (No S/S A 2330 AT 15-JUL-2015 Document) [CUST: AT YD 99] [REVIEW: 84 MC] M MIL-C-52437/4 NOT 2 Chassis, Trailer, Size 6, CCE (No S/S Document) [CUST: AT 99] [REVIEW: 84] A 2330 AT 15-JUL-2015 M MIL-C-52437/5 NOT 2 Chassis, Trailer, Size 8, CCE (No S/S Document) [CUST: AT 99] [REVIEW: 84] A 2330 AT 15-JUL-2015 M MIL-C-52437/6 NOT 2 Chassis, Trailer, Size 9, Military Design (No S/S Document) [CUST: AT 99] [REVIEW: 84] A 2330 AT 15-JUL-2015 M MIL-C-52437/7 NOT 2 Chassis, Trailer, Size 11, CCE (No S/S Document) [CUST: AT 99] [REVIEW: 84] A 2330 AT 15-JUL-2015 M MIL-C-52437/8 NOT 2 Chassis, Trailer, Size 14, CCE (No S/S Document) [CUST: AT 99] [REVIEW: 84] A 2330 AT 15-JUL-2015 M MIL-C-52437/9 NOT 2 Chassis, Trailer, Size 32, CCE (No S/S Document) [CUST: AT 99] [REVIEW: 84] A 2330 AT 15-JUL-2015 M MIL-T-62109C NOT 2 Trailers, Lowbed: Forklift Transporter, 5450 and 8150 Kilogram (6 and 9 Ton), Modified A 2330 AT 15-JUL-2015 Commercial (No S/S Document) [CUST: AT 99] M MIL-PRF-85045/14C NOT 1 Cable, Fiber Optic, One Fiber, Cable Configuration Type 1 (Buffered Fiber), Loose Tube, Cable A 6015 SH 30-JUN-2015 Class SM and MM, (Metric)(S/S by MIL-PRF-85045/16) [CUST: CR SH 85 NA] [REVIEW: AR AV CC EC MI YD] M MIL-DTL-46162E NOT 2 Fuel, Diesel, Referee Grade (No S/S Document) [CUST: AT SA] [REVIEW: FAS PS TE] A 9140 AT 27-JUL-2015 M DI-SESS NOT 1 Interface Control Document (ICD) (MIL-STD-3046) (S/S By DI-SESS-81248) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Baseline Description Document (MIL-STD-3046) (S/S By DI-SESS-81121) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Product Baseline Index (PBLI) (MIL-STD-3046) (No S/S Document) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Configuration Item (CI) Documentation Recommendation (MIL-STD-3046)(No S/S Document) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Engineering Change Proposal (ECP) (MIL-STD-3046) (S/S By DI-SESS-80639) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Notice of Revision (NOR) (MIL-STD-3046) (S/S By DI-SESS-80642) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Engineering Release Record (ERR) (MIL-STD-3046) (S/S By DI-SESS-80643) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Request for Variance (RFV) (MIL-STD-3046) (S/S By DI-SESS-80640) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Configuration Status Accounting Information (MIL-STD-3046) (S/S By DI-SESS-81253) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 As Built Configuration List (ABCL) (MIL-STD-3046) (See Notice 1 for Replacement Information) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Configuration Audit Plan (MIL-STD-3046) (S/S By DI-SESS-81646) A SESS AR 01-JUN-2015 M DI-SESS NOT 1 Configuration Audit Summary Report and Certification (MIL-STD-3046) (S/S By DI-SESS-81022) A SESS AR 01-JUN-2015 M IEC Information Technology - Software Process Assessment Part 5, an Assessment Model and Indicator A SESS SE 07-JUL-2015 Guidance (No S/S Document) [CUST: AM AS 10] [REVIEW: AC AR AV CC CG CH CR DC1 DC5 DH DMS MA MC MDA MI NS OS PT SA SH SO SY TE TM USTC] 4