| 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) | 00-032-9998 (000329998) |
| NCB Code | USA (00) |
| Manufacturer | Associated Aerospace Activities Inc, Honeywell International Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.087 INCHES MINIMUM AND 0.091 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 2 |
| ABPX | MATERIAL THICKNESS | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| CRZL | ANGLE BETWEEN FIRST AND SECOND KEY | 90.0 DEGREES NOMINAL |
| CSMK | ANGLE BETWEEN INTERNAL KEY AND FIRST OFFSET KEY | 90.0 DEGREES NOMINAL |
| CSYM | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES |
| FEAT | SPECIAL FEATURES | WASHER HAS STRAIGHT INTERNAL KEY |
| MATT | MATERIAL | STEEL COMP 302 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | OXIDE FILM OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-032-9998, 5310000329998 | ||||
| 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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