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 |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
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 |
|---|---|---|
| BZRR | THREAD SERIES | UNEF |
| ABQU | DRIVE POINT DEPTH | 0.094 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| ZZZW | DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY DRILLED HOLES |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| CRHC | HOLE CONFIGURATION STYLE | CONFIGURATION F |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AGGP | DRILLED HOLE DIAMETER | 0.067 INCHES NOMINAL |
| ALET | HOLE TYPE AND QUANTITY | 8 DRILLED |
| CRSQ | COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM NUT AND 92.0 DEGREES MAXIMUM NUT |
| AAJD | THREAD CLASS | 3B |
| AZKQ | TEMP RATING | NOT RATED |
| ADBM | DRIVE POINT QUANTITY | 8 |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| ADBH | DRIVE POINT WIDTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 1.625 INCHES |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| ACTA | NUT STYLE | ROUND |
| ACTD | NUT DIAMETER | 2.360 INCHES MINIMUM AND 2.380 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6381 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR MS 6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ADBG | NUT THICKNESS | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |