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 |
|---|---|
| 99993 | DEPARTMENT OF THE NAVY |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATB | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AATX | SHOULDER LENGTH | 0.067 INCHES NOMINAL FIRST SHOULDER |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AATN | SHOULDER DIAMETER | 0.219 INCHES NOMINAL FIRST SHOULDER |
| AASA | THREAD LENGTH | 0.219 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.094 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON |
| AASB | FASTENER LENGTH | 0.375 INCHES NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 0.138 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 40 |