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 |
|---|---|
| K0289 | BRITISH AEROSPACE MILITARY AIRCRAFT |
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 |
|---|---|---|
| CQJW | TOP RECESS DIAMETER | 0.760 INCHES NOMINAL |
| CQJW | TOP RECESS DIAMETER | 0.760 INCHES NOMINAL |
| CRSD | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL |
| AAUB | HOLE DIAMETER | 0.717 INCHES MINIMUM AND 0.719 INCHES MAXIMUM |
| CRKG | BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| CSML | BOTTOM RECESS DIAMETER | 0.760 INCHES NOMINAL |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| ABPX | MATERIAL THICKNESS | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | RECESSED BOTH SIDES |
| ABKV | OUTSIDE DIAMETER | 1.425 INCHES MINIMUM AND 1.428 INCHES MAXIMUM |