Part Number
Definition:
A WASHER OF NONRESILIENT MATERIAL USUALLY HAVING TWO PARALLEL BEARING SURFACES. THE OUTSIDE AND/OR INSIDE EDGES HAVE ONE OR MORE PROTUBERANCES. THE ENDS AND/OR EDGES MAY BE PREBENT AT ANY ANGLE OR THE PROTUBERANCES MAY BE PREBENT AT ANY ANGLE TO THE BEARING SURFACES. THE KEYS OR LUGS MAY BE FITTED INTO KEYWAYS IN ADJACENT MATERIAL OR THEY MAY BE BENT OVER AFTER APPLICATION TO HOLD OR LOCK ONE OR MORE ITEMS IN PLACE. EXCLUDES THRUST TYPE WASHER.
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 |
|---|---|---|
| AAUB | HOLE DIAMETER | 2.973 INCHES MINIMUM AND 3.003 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 2.973 INCHES MINIMUM AND 3.003 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-16232 TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.280 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 3.375 INCHES MINIMUM AND 3.395 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 3.892 INCHES MINIMUM AND 3.922 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 8735 OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 92.0 ROCKWELL B MINIMUM |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| HEAT | HEAT TREATMENT | NORMALIZED |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 19 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |