Part Number
Definition:
A NUT, CIRCULAR IN SHAPE, WHICH MAY HAVE WRENCHING FACILITIES SUCH AS FLATS, HOLES, PROTRUSIONS, SLOTS OR SPLINES IN OR ON THE PERIPHERY OR IN THE FACE OPPOSITE THE BEARING SURFACE. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE OUTSIDE DIAMETER, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. SEE ALSO NUT (1), PLAIN, KNURLED. (WHEN HEIGHT OR THICKNESS AND/OR OUTSIDE DIAMETER IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)
CAGE Information
| Code | Company |
|---|---|
| 19200 | U S ARMY ARMAMENT RESEARCH & DEVELOP |
Federal Supply Class
Title
NUTS AND WASHERS
Inclusions:
INCLUDES LOCKNUTS; EYE NUTS; PLAIN NUTS; CASTELLATED NUTS; WING NUTS; PLATE NUTS; PUSH ON NUTS; CONCAVE AND CONVEX WASHERS; FLAT WASHERS; KEYED WASHERS; LOCK WASHERS; SHOULDERED WASHERS; SPLIT WASHERS.
Exclusions:
EXCLUDES BEARING THRUST WASHERS (FSC 3120); SHIMS (FSC 5365); RING SPACERS (FSC 5365); PLATE SPACERS (FSC 5365); LOCK RINGS (FSC 5365).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CQFM | HARDNESS RATING | 50.0 ROCKWELL D MINIMUM AND 60.0 ROCKWELL D MAXIMUM |
| ACTD | NUT DIAMETER | 0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| ADFK | NUT COUNTERBORE DEPTH | 0.060 INCHES MINIMUM NUT AND 0.070 INCHES MAXIMUM NUT |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES |
| BZRR | THREAD SERIES | UNS |
| ABQU | DRIVE POINT DEPTH | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| ADBH | DRIVE POINT WIDTH | 0.102 INCHES MINIMUM AND 0.107 INCHES MAXIMUM |
| ADBM | DRIVE POINT QUANTITY | 2 |
| AAJE | THREAD PITCH DIAMETERS | +0.2202/+0.2237 INCHES |
| AAWY | COUNTERBORE DIAMETER | 0.250 INCHES MINIMUM NUT AND 0.260 INCHES MAXIMUM NUT |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL COMP 1137 OVERALL OR STEEL COMP 1141 OVERALL |
| ADBG | NUT THICKNESS | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 22 |
| AZKQ | TEMP RATING | NOT RATED |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| ACTA | NUT STYLE | ROUND |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-637 FED SPEC ALL MATERIAL RESPONSES OVERALL |