Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, AND WHOSE UNTHREADED PORTION HAS BEEN MACHINED OR GROUND IN ONE OR MORE PLACES OR OVER ITS ENTIRE LENGTH TO A MAXIMUM DIAMETER LESS THAN THE MINIMUM PITCH DIAMETER OF THE THREAD (EXCLUDES UNDERCUT FOR THREAD RELIEF). IT IS NO. 0 (0.060 IN.) (1.5 MM) OR LARGER, AND IS DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET AND MULTIPLE SPLINE TYPES) BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO BOLT, EXTERNALLY RELIEVED BODY AND BOLT, INTERNAL WRENCHING.
CAGE Information
| Code | Company |
|---|---|
| 19204 | ARMY UNITED STATES DEPARTMENT OF THE |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| AASB | FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.130 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 1118 OVERALL OR STEEL COMP 1212 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1022 OVERALL |
| AAJD | THREAD CLASS | 3A |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.250 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASK | HEAD STYLE | ROUND |
| AAWC | FIRST DIAMETER FROM HEAD | 0.156 INCHES NOMINAL |
| AASL | HEAD DIAMETER | 0.359 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A576 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR ASTM A108 ASSN STD 5TH MATERIAL RESPONSE OVERALL OR ASTM A575 ASSN STD 6TH MATERIAL RESPONSE OVERALL OR QQ-S-637 FED SPEC 2ND MATERIAL RESPONSE OVERALL OR ASTM S575 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR ASTM A576 ASSN STD 4TH MATERIAL RESPONSE OVERALL OR ASTM A108 ASSN STD 7TH MATERIAL RESPONSE OVERALL |