| Item Name | Washer Key |
| INC Code | 01869 |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-299-2913 (012992913) |
| NCB Code | USA (01) |
| Manufacturer | U S Army Aviation And Missile, Whittet Higgins Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| MATT | MATERIAL | STEEL COMP 1010 OVERALL |
| SFTT | SURFACE TREATMENT | OIL OVERALL |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 1.953 INCHES MINIMUM AND 2.016 INCHES MAXIMUM |
| AAUB | HOLE DIAMETER | 1.193 INCHES MINIMUM AND 1.213 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.438 INCHES MINIMUM AND 1.458 INCHES MAXIMUM |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 13 |
| ABPX | MATERIAL THICKNESS | 0.042 INCHES MINIMUM AND 0.050 INCHES MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-01-299-2913, 5310012992913 | ||||
| 5310-01-011-9703 (5310010119703) | 5310-01-631-4489 (5310016314489) | 5310-00-020-9053 (5310000209053) | 5310-01-041-3831 (5310010413831) | |
| 5310-01-180-5326 (5310011805326) | 5310-01-187-5440 (5310011875440) | 5310-00-092-6831 (5310000926831) | 5310-01-210-4885 (5310012104885) | |
| 5310-00-474-5240 (5310004745240) | 5310-00-474-3114 (5310004743114) | 5310-00-159-9146 (5310001599146) | 5310-01-528-9271 (5310015289271) | |
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