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 |
|---|---|
| 89944 | KOLLSMAN INC. |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASA | THREAD LENGTH | 0.156 INCHES MINIMUM |
| ABQZ | INTERNAL DRIVE STYLE | SLOT |
| AASL | HEAD DIAMETER | 0.109 INCHES NOMINAL |
| AASK | HEAD STYLE | FILLISTER |
| AASB | FASTENER LENGTH | 0.218 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.060 INCHES MINIMUM FIRST SHOULDER AND 0.061 INCHES MAXIMUM FIRST SHOULDER |
| AAJD | THREAD CLASS | 3A |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| AASU | HEAD HEIGHT | 0.005 INCHES MINIMUM AND 0.011 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AATX | SHOULDER LENGTH | 0.062 INCHES NOMINAL FIRST SHOULDER |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| AHYM | NOMINAL THREAD DIAMETER | 0.060 INCHES |
| MATT | MATERIAL | COPPER ALLOY 360 OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 80 |