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 |
|---|---|
| 02991 | PRECISION THREADED PRODUCTS, INC. |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AASA | THREAD LENGTH | 0.197 INCHES MINIMUM |
| PRMT | PRECIOUS MATERIAL | SILVER |
| AATX | SHOULDER LENGTH | 0.078 INCHES MINIMUM FIRST SHOULDER AND 0.088 INCHES MAXIMUM FIRST SHOULDER |
| AASB | FASTENER LENGTH | 0.285 INCHES NOMINAL |
| CFSG | NONSTANDARD THREAD PITCH DIAMETER | +0.1644/+0.1667 INCHES |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | FLAT CHAMFER |
| MATT | MATERIAL | IRON ALLOY 660 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AATN | SHOULDER DIAMETER | 0.360 INCHES MINIMUM FIRST SHOULDER AND 0.380 INCHES MAXIMUM FIRST SHOULDER |
| AASL | HEAD DIAMETER | 0.255 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | SILVER OVERALL |
| PMLC | PRECIOUS MATERIAL AND LOCATION | OVERALL SILVER |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| AASU | HEAD HEIGHT | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |