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 | UNF |
| CQJX | NOMINAL THREAD SIZE | 1.375 INCHES |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CQFM | HARDNESS RATING | NOT RATED |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| ADFK | NUT COUNTERBORE DEPTH | 0.094 INCHES MINIMUM NUT AND 0.156 INCHES MAXIMUM NUT |
| CRSQ | COUNTERSINK ANGLE | 109.5 DEGREES MINIMUM NUT AND 110.5 DEGREES MAXIMUM NUT |
| AAJD | THREAD CLASS | 3B |
| AZKQ | TEMP RATING | NOT RATED |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ADBG | NUT THICKNESS | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| AAWY | COUNTERBORE DIAMETER | 1.450 INCHES MINIMUM NUT AND 1.470 INCHES MAXIMUM NUT |
| ACTA | NUT STYLE | ROUND |
| CMLP | THREAD QUANTITY PER INCH | 12 |
| ASDB | WIDTH ACROSS FLATS | 1.531 INCHES MINIMUM AND 1.594 INCHES MAXIMUM |
| ACTD | NUT DIAMETER | 1.719 INCHES MINIMUM AND 1.781 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |