AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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 | Norfolk Naval Shipyard, Defense Logistics Agency |
| 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 |
| Relevant Components for NSN - 5310-00-255-3405, 5310002553405 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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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