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 |
|---|---|
| 53711 | NAVAL SEA SYSTEMS COMMAND |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASK | HEAD STYLE | KNURLED NO. 1 |
| ASDB | WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | OXIDE THREADS |
| AHYM | NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THSD | THREAD SERIES DESIGNATOR | UNRC |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AATX | SHOULDER LENGTH | 2.245 INCHES MINIMUM FIRST SHOULDER AND 2.255 INCHES MAXIMUM FIRST SHOULDER |
| AASU | HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.975 INCHES MINIMUM AND 3.005 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL OVERALL |
| AATN | SHOULDER DIAMETER | 0.622 INCHES MINIMUM FIRST SHOULDER AND 0.623 INCHES MAXIMUM FIRST SHOULDER |
| SFTT | SURFACE TREATMENT | OXIDE HEAD |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AASA | THREAD LENGTH | 0.730 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 13 |