Part Number
Definition:
A WASHER, ROUND IN SHAPE, AND HAVING A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS FLAT AND UNBROKEN, THE OTHER SURFACE IS IN THE FORM OF A RAISED SHOULDER (BOSS) HAVING A FLAT BEARING SURFACE. THE THICKNESS OF THE SHOULDER (BOSS) MUST NOT EXCEED 25 PERCENT OF THE SHOULDER (BOSS) DIAMETER. FOR ITEMS HAVING A SHOULDER (BOSS) OF GREATER THICKNESS, USE BEARING, SLEEVE; BUSHING SLEEVE; OR SPACER, SLEEVE. EXCLUDES INSULATOR, WASHER AND THRUST TYPE WASHERS.
CAGE Information
| Code | Company |
|---|---|
| 81349 | MILITARY SPECIFICATIONS PROMULGATED |
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 |
|---|---|---|
| ABKV | OUTSIDE DIAMETER | 0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
| MATT | MATERIAL | PLASTIC POLYAMIDE OVERALL OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL |
| STYL | STYLE DESIGNATOR | SHOULDERED |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM D4066 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR L-P-410 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| ABMG | SHOULDER HEIGHT | 0.024 INCHES MINIMUM AND 0.050 INCHES MAXIMUM |
| AAVH | SHOULDER DIAMETER | 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |