| Item Name | Washer Concave |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-101-5871 (001015871) |
| NCB Code | USA (00) |
| Manufacturer | Boeing Company The, Huck International Inc, Sps Technologies Inc, Alcoa Fastening Systems Ltd, Alcoa Global Fasteners Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 3M348L6 | boeing company the | washer concave | 76301 | RFQ |
| 3M348L6 | huck international inc | washer concave | 97928 | RFQ |
| TLN1020L6W | sps technologies inc | washer concave | 80539 | RFQ |
| TLN1020L6W | alcoa fastening systems ltd | washer concave | c4293 | RFQ |
| TLN1020L6W | alcoa global fasteners inc | washer concave | 92215 | RFQ |
| TLN1020L6W | huck international inc | washer concave | 97928 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.534 INCHES NOMINAL |
| ABGG | RADIUS | 0.435 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.785 INCHES NOMINAL |
| ABMH | RECESS DEPTH | 0.113 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.175 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | CONCAVE |
| Components Related to NSN - 5310-00-101-5871, 5310001015871 | ||||
| 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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