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) | 00-637-3079 (006373079) |
| NCB Code | USA (00) |
| Manufacturer | Curtiss Wright Electro Mechanical Corporation, R P S Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.750 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 1.093 INCHES NOMINAL |
| ABLB | INTERNAL PREBENT KEY LENGTH | 0.235 INCHES NOMINAL |
| ABLF | EXTERNAL PREBENT KEY WIDTH | 0.158 INCHES NOMINAL |
| ABLK | INTERNAL PREBENT KEY WIDTH | 0.174 INCHES NOMINAL |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 1.224 INCHES NOMINAL |
| ABMQ | EXTERNAL KEY QUANTITY | 7 |
| ABPX | MATERIAL THICKNESS | 0.031 INCHES NOMINAL |
| CRYG | ANGLE BETWEEN FIFTH AND SIXTH KEY | 40.0 DEGREES NOMINAL |
| CRZL | ANGLE BETWEEN FIRST AND SECOND KEY | 40.0 DEGREES NOMINAL |
| CSHK | ANGLE BETWEEN SECOND AND THIRD KEY | 40.0 DEGREES NOMINAL |
| CSNP | ANGLE BETWEEN THIRD AND FOURTH KEY | 40.0 DEGREES NOMINAL |
| CSXR | ANGLE BETWEEN FOURTH AND FIFTH KEY | 40.0 DEGREES NOMINAL |
| FEAT | SPECIAL FEATURES | 40 DEGREE ANGLE BETWEEN SIXTH AND SEVENTH KEY |
| MATT | MATERIAL | NICKEL ALLOY UNS N10001 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Relevant Components for NSN - 5310-00-637-3079, 5310006373079 | ||||
| 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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