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) | 00-571-7024 (005717024) |
| NCB Code | USA (00) |
| Manufacturer | National Aerospace Standards Com |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.575 INCHES MINIMUM AND 0.591 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.071 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| CQFW | DISTANCE FROM KEY CENTER TO WIRE HOLE CENTER | 0.185 INCHES MINIMUM AND 0.191 INCHES MAXIMUM |
| CRZZ | WIRE HOLE DIAMETER | 0.071 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP A OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7947 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | INTERNAL PREBENT KEY |
| ZZZK | SPECIFICATION/STANDARD DATA | 80205-NAS513 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Relevant Components for NSN - 5310-00-571-7024, 5310005717024 | ||||
| 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) | |
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