| 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) | 00-566-8874 (005668874) |
| NCB Code | USA (00) |
| Manufacturer | Goriziane Group Spa, Military Standards Corp, Whittet Higgins Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 3.177 INCHES MINIMUM AND 3.207 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 3.594 INCHES MINIMUM AND 3.614 INCHES MAXIMUM |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 4.111 INCHES MINIMUM AND 4.141 INCHES MAXIMUM |
| ABMQ | EXTERNAL KEY QUANTITY | 19 |
| ABPX | MATERIAL THICKNESS | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6350 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2481 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| Relevant Components for NSN - 5310-00-566-8874, 5310005668874 | ||||
| 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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