| Item Name | Washer Key |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-255-3405 (002553405) |
| NCB Code | USA (00) |
| Manufacturer | Defense Logistics Agency, Norfolk Naval Shipyard |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM |
| ABKX | EXTERNAL STRAIGHT KEY LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| ABLA | PEENING KEY LENGTH | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| ABLC | EXTERNAL STRAIGHT KEY WIDTH | 0.375 INCHES NOMINAL |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 2.000 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |
| MATT | MATERIAL | NICKEL ALLOY A OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | KEY |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | BOLT SIZE AND MATERIAL |
| Components Related to NSN - 5310-00-255-3405, 5310002553405 | ||||
| 5330-00-154-7423 (5330001547423) | 5365-01-326-1135 (5365013261135) | 5306-01-053-6961 (5306010536961) | 5310-00-523-2141 (5310005232141) | |
| 5325-01-240-1213 (5325012401213) | 5360-01-089-4004 (5360010894004) | 5330-01-089-6878 (5330010896878) | 5330-01-125-9042 (5330011259042) | |
| 5365-01-447-3568 (5365014473568) | 5340-00-967-7591 (5340009677591) | 5305-00-733-6616 (5305007336616) | 5310-01-278-4520 (5310012784520) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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