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 |
|---|---|
| 98897 | LOCKHEED MARTIN CORPORATION DBA LOCK |
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 | 0.1415 INCHES MINIMUM AND 0.1485 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.049 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| SFTT | SURFACE TREATMENT | CHROMATE OVERALL |
| ABMD | RECESS DIAMETER | 0.369 INCHES MINIMUM AND 0.379 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | RECESS |
| CSTM | RECESS ANGLE | 119.0 DEGREES MINIMUM AND 121.0 DEGREES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.423 INCHES MINIMUM AND 0.443 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |