AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Recessed |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-176-7022 (011767022) |
| NCB Code | USA (01) |
| Manufacturer | Mcdonnell Douglas Helicopter Co Inc, Anillo Industries Inc, Lars Industries Inc, Boeing Company The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.314 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.583 INCHES MINIMUM AND 0.603 INCHES MAXIMUM |
| ABMD | RECESS DIAMETER | 0.402 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| FEAT | SPECIAL FEATURES | HEAT TREATMENT,260,000 PS8 MIN |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5758 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 5844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED |
| Relevant Components for NSN - 5310-01-176-7022, 5310011767022 | ||||
| 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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