| Item Name | Washer Keyway |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-568-9491 (005689491) |
| NCB Code | USA (00) |
| Manufacturer | Texas Instruments Inc, Harris Corporation, Bae Systems Information, Itt Federal Laboratories |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 2053404 | texas instruments inc | washer keyway | 57057 | RFQ |
| 2053404 | harris corporation | washer keyway | 28527 | RFQ |
| 648914 | bae systems information | washer keyway | 12436 | RFQ |
| 648914-000 | harris corporation | washer keyway | 28527 | RFQ |
| A2053404 | harris corporation | washer keyway | 28527 | RFQ |
| A2053404 | itt federal laboratories | washer keyway | 90348 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.376 INCHES MINIMUM AND 0.396 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.609 INCHES MINIMUM AND 1.641 INCHES MAXIMUM |
| ABKZ | EXTERNAL KEYWAY LENGTH | 0.657 INCHES NOMINAL |
| ABLL | EXTERNAL KEYWAY WIDTH | 0.250 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.012 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | 12 SLOTS 0.032 IN. WIDE EQUALLY SPACED ON OUTSIDE DIA |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-C-4042,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | SILVER OVERALL |
| Components Related to NSN - 5310-00-568-9491, 5310005689491 | ||||
| 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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