Part Number
Part Number:
NSN:
NIIN:
Item Name:
NUT , PLAIN , CASTELLATED , HEXAGON
Definition:
A NUT HAVING 6 FLAT SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. IT IS DESIGNED TO PROVIDE POSITIVE LOCKING WHEN USED WITH A SOLID OR SPLIT (COTTER) PIN. EXCLUDES NUT (1), PLAIN, SLOTTED, HEXAGON.
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 |
|---|---|---|
| CSXL | BEARING SURFACE FINISH | 125.0 MICROINCHES |
| CSXL | BEARING SURFACE FINISH | 125.0 MICROINCHES |
| ASDB | WIDTH ACROSS FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| MATT | MATERIAL | STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| AAJD | THREAD CLASS | 3B |
| CRTM | BEARING SURFACE TYPE | CHAMFERED |
| CQJX | NOMINAL THREAD SIZE | 0.312 INCHES |
| ACTA | NUT STYLE | CASTELLATED, HEXAGON |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| BZRR | THREAD SERIES | UNJF |
| ADEA | NUT HEIGHT | 0.465 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |