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 |
|---|---|---|
| SFTT | SURFACE TREATMENT | PHOSPHATE ZINC OVERALL |
| ADBH | DRIVE POINT WIDTH | 0.495 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| ACTD | NUT DIAMETER | 6.500 INCHES NOMINAL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AAJD | THREAD CLASS | 3B |
| ADBM | DRIVE POINT QUANTITY | 8 |
| ADBG | NUT THICKNESS | 0.500 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | 1/4-28 UNF-3B HOLE TAPPED RADIALLY THRU EACH DRIVE POINT |
| ACTA | NUT STYLE | ROUND |
| ABQU | DRIVE POINT DEPTH | 0.200 INCHES NOMINAL |