| 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 | Harris Corporation, Bae Systems Information, Texas Instruments Inc, Itt Federal Laboratories |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| A2053404 | harris corporation | washer keyway | 28527 | RFQ |
| 2053404 | harris corporation | washer keyway | 28527 | RFQ |
| 648914-000 | harris corporation | washer keyway | 28527 | RFQ |
| 648914 | bae systems information | washer keyway | 12436 | RFQ |
| 2053404 | texas instruments inc | washer keyway | 57057 | 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 |
| Relevant Components for NSN - 5310-00-568-9491, 5310005689491 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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