AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Concave |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 00-684-2758 (006842758) |
| NCB Code | USA (00) |
| Manufacturer | Sps Technologies Inc, Harvard Industries Inc, Bae Systems Land And Armaments Inc, Eca Etablissement Central Des |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.467 INCHES MINIMUM AND 0.477 INCHES MAXIMUM |
| ABGG | RADIUS | 0.385 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM |
| ABMH | RECESS DEPTH | 0.056 INCHES NOMINAL |
| ABPX | MATERIAL THICKNESS | 0.137 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| HEAT | HEAT TREATMENT | AS FABRICATED |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | CONCAVE |
| Relevant Components for NSN - 5310-00-684-2758, 5310006842758 | ||||
| 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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