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 |
|---|---|
| 84955 | KAMAN AEROSPACE CORPORATION DBA HELI |
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 |
|---|---|---|
| HEAT | HEAT TREATMENT | QUENCHED AND TEMPERED |
| HEAT | HEAT TREATMENT | QUENCHED AND TEMPERED |
| ABPX | MATERIAL THICKNESS | 0.050 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| MATT | MATERIAL | STEEL COMP E4340 OVERALL |
| AAUB | HOLE DIAMETER | 0.528 INCHES NOMINAL |
| ABMD | RECESS DIAMETER | 0.588 INCHES NOMINAL |
| STYL | STYLE DESIGNATOR | RECESS |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 0.810 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |