Part Number
Part Number:
NSN:
NIIN:
Item Name:
NUT , SELF-LOCKING , EXTENDED WASHER
Definition:
A NUT HAVING 12 DRIVE POINTS, 24 SIDES, AND AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE POINTS OR PERIPHERY. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.
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 |
|---|---|---|
| AAVX | WASHER OUTSIDE DIAMETER | 0.583 INCHES MINIMUM AND 0.593 INCHES MAXIMUM |
| AAVX | WASHER OUTSIDE DIAMETER | 0.583 INCHES MINIMUM AND 0.593 INCHES MAXIMUM |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| ADEM | WASHER THICKNESS | 0.090 INCHES NOMINAL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| ACTA | NUT STYLE | DOUBLE HEXAGON |
| ASDB | WIDTH ACROSS FLATS | 0.424 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | NOT RATED |
| AZKQ | TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| MATT | MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| MATT | MATERIAL | STEEL COMP 3140 NUT OR STEEL COMP 4340 NUT OR STEEL COMP 4130 NUT OR STEEL COMP 8740 NUT |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| ABKW | OVERALL HEIGHT | 0.396 INCHES NOMINAL |
| AAJD | THREAD CLASS | 3B |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL EXCEPT INSERT |
| CQJX | NOMINAL THREAD SIZE | 0.312 INCHES |
| BZRR | THREAD SERIES | UNJF |