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 |
|---|---|---|
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6431 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ABQU | DRIVE POINT DEPTH | 0.125 INCHES NOMINAL |
| ABPH | SMALL END DIAMETER | 2.650 INCHES NOMINAL |
| ADBH | DRIVE POINT WIDTH | 0.270 INCHES NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 2.125 INCHES |
| AGGP | DRILLED HOLE DIAMETER | 0.070 INCHES NOMINAL |
| CRHC | HOLE CONFIGURATION STYLE | CONFIGURATION F |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ALET | HOLE TYPE AND QUANTITY | 8 DRILLED |
| AAJD | THREAD CLASS | 3B |
| AZKQ | TEMP RATING | NOT RATED |
| ACTD | NUT DIAMETER | 3.125 INCHES NOMINAL |
| ADBM | DRIVE POINT QUANTITY | 8 |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 16 |
| BZRR | THREAD SERIES | UN |
| ADBG | NUT THICKNESS | 0.375 INCHES NOMINAL |
| ACTA | NUT STYLE | ROUND |
| ADBJ | UNDERCUT THICKNESS | 0.094 INCHES NOMINAL |