Part Number
Definition:
A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.
CAGE Information
| Code | Company |
|---|---|
| 1W025 | NORTHROP GRUMMAN SYSTEMS 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 |
|---|---|---|
| ABMD | RECESS DIAMETER | 0.386 INCHES MINIMUM AND 0.396 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 0.314 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | RECESS |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MATT | MATERIAL | IRON ALLOY 660 OVERALL OR NICKEL ALLOY 718 OVERALL |
| ABKV | OUTSIDE DIAMETER | 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5525 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR AMS5737 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR AMS5596 ASSN STD 2ND MATERIAL RESPONSE OVERALL OR AMS5597 ASSN STD 2ND MATERIAL RESPONSE OVERALL OR AMS5662 ASSN STD 2ND MATERIAL RESPONSE OVERALL |