Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES BOLT, INTERNAL WRENCHING AND SCREW, CAP, SOCKET HEAD.
CAGE Information
| Code | Company |
|---|---|
| 58905 | STRIKE WEAPONS AND UNMANNED AVIATION |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASA | THREAD LENGTH | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | OXIDE THREADS |
| AATX | SHOULDER LENGTH | 0.745 INCHES MINIMUM FIRST SHOULDER AND 0.755 INCHES MAXIMUM FIRST SHOULDER |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL |
| MATT | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE HEAD OR MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE THREADS OR MIL-C-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE THREADS |
| AAJD | THREAD CLASS | 3A |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| AASL | HEAD DIAMETER | 0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL OVERALL |
| AAUM | LOCKING FEATURE | PATCH THREADS OR STRIP THREADS |
| SFTT | SURFACE TREATMENT | OXIDE HEAD |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| CQBC | MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| HUES | COLOR | BLACK THREADS |
| AATN | SHOULDER DIAMETER | 0.621 INCHES MINIMUM FIRST SHOULDER AND 0.623 INCHES MAXIMUM FIRST SHOULDER |
| AASU | HEAD HEIGHT | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.500 INCHES NOMINAL |
| HUES | COLOR | BLACK HEAD |
| CMLP | THREAD QUANTITY PER INCH | 13 |