AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Keyway |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-342-0442 (003420442) |
| NCB Code | USA (00) |
| Manufacturer | United Technologies Corporation, Hamilton Sundstrand Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.324 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
| ABLM | INTERNAL KEYWAY WIDTH | 0.080 INCHES NOMINAL |
| ABLR | DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY | 0.223 INCHES NOMINAL |
| ABMV | INTERNAL KEYWAY QUANTITY | 1 |
| ABPX | MATERIAL THICKNESS | 0.050 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-342-0442, 5310003420442 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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