| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-912-6120 (009126120) |
| NCB Code | USA (00) |
| Manufacturer | Sps Technologies Inc, Fitz Aerospace Llc, Harvard Industries Inc, Lockheed Martin Corporation, Alcoa Global Fasteners Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 64127W6 | sps technologies inc | washer recessed | 56878 | RFQ |
| 7611-06 | fitz aerospace llc | washer recessed | 019l2 | RFQ |
| 7611-06 | harvard industries inc | washer recessed | 72962 | RFQ |
| C396-6B | lockheed martin corporation | washer recessed | 81755 | RFQ |
| K28-6 | alcoa global fasteners inc | washer recessed | 15653 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.531 INCHES MINIMUM AND 0.537 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| ABMH | RECESS DEPTH | 0.104 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| MATT | MATERIAL | STEEL COMP 8740 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 | RECESSED |
| Components Related to NSN - 5310-00-912-6120, 5310009126120 | ||||
| 5325-01-017-8809 (5325010178809) | 5330-01-278-3019 (5330012783019) | 5365-01-304-3832 (5365013043832) | 5305-15-060-1487 (5305150601487) | |
| 5305-01-361-3193 (5305013613193) | 5330-01-259-4088 (5330012594088) | 5340-01-672-8342 (5340016728342) | 5342-00-452-9798 (5342004529798) | |
| 5310-01-175-0629 (5310011750629) | 5330-01-120-4149 (5330011204149) | 5331-01-441-4577 (5331014414577) | 5330-01-425-8795 (5330014258795) | |
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