| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-320-7175 (013207175) |
| NCB Code | USA (01) |
| Manufacturer | Fastener Technology Inc, Northrop Grumman Systems Corporation, Hamilton Sundstrand Corporation, United Technologies Corporation, Lockheed Martin Corporation, Raytheon Company |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| FT1761-8P | fastener technology inc | washer key | 58794 | RFQ |
| 560R537H02 | northrop grumman systems corporation | washer key | 97942 | RFQ |
| 82639-2 | hamilton sundstrand corporation | washer key | 73030 | RFQ |
| 82639-2 | united technologies corporation | washer key | 07148 | RFQ |
| 76000187-005 | lockheed martin corporation | washer key | 04939 | RFQ |
| G371929-1 | raytheon company | washer key | 3b150 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.266 INCHES MINIMUM AND 0.286 INCHES MAXIMUM |
| ABLJ | INTERNAL STRAIGHT KEY WIDTH | 0.032 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| ABLQ | DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.05675 INCHES NOMINAL |
| ABMR | INTERNAL KEY QUANTITY | 2 |
| ABPX | MATERIAL THICKNESS | 0.028 INCHES MINIMUM AND 0.038 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 631 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-25043 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-01-320-7175, 5310013207175 | ||||
| 5330-00-037-6893 (5330000376893) | 5307-00-803-5029 (5307008035029) | 5306-00-638-8373 (5306006388373) | 5330-01-185-7225 (5330011857225) | |
| 5365-00-089-1699 (5365000891699) | 5331-01-025-7783 (5331010257783) | 5330-01-362-7880 (5330013627880) | 5307-01-286-8388 (5307012868388) | |
| 5340-01-407-7865 (5340014077865) | 5340-01-609-2404 (5340016092404) | 5330-01-167-2303 (5330011672303) | 5340-01-145-4055 (5340011454055) | |
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