| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-120-8196 (011208196) |
| NCB Code | USA (01) |
| Manufacturer | Nimikkeistokeskus Ncb Finland, Federal Specifications, Military Standards Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.501 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.028 INCHES MINIMUM AND 1.038 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.153 INCHES MINIMUM AND 0.167 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| CQJW | TOP RECESS DIAMETER | 0.619 INCHES MINIMUM AND 0.629 INCHES MAXIMUM |
| CRKG | BOTTOM RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM |
| CRSD | TOP RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM |
| CSML | BOTTOM RECESS DIAMETER | 0.619 INCHES MINIMUM AND 0.629 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL OR MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED BOTH SIDES |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | A TYPE AND 1 GRADE AND A CLASS |
| Components Related to NSN - 5310-01-120-8196, 5310011208196 | ||||
| 5315-01-076-2969 (5315010762969) | 5325-00-543-3429 (5325005433429) | 5340-00-196-3675 (5340001963675) | 5360-01-424-6607 (5360014246607) | |
| 5310-00-084-4232 (5310000844232) | 5365-01-532-4588 (5365015324588) | 5340-01-654-3113 (5340016543113) | 5305-01-143-8635 (5305011438635) | |
| 5340-01-332-8256 (5340013328256) | 5360-00-558-5147 (5360005585147) | 5306-01-234-3071 (5306012343071) | 5305-01-175-6588 (5305011756588) | |
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