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) | 00-437-8948 (004378948) |
| NCB Code | USA (00) |
| Manufacturer | Bell Helicopter Textron Inc, Rotair Industries Inc, Alco Machine Co Inc, Finmeccanica Spa Helicopters |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 204-030-913-005 | bell helicopter textron inc | washer recessed | RFQ |
| 204-030-913-5 | bell helicopter textron inc | washer recessed | RFQ |
| 204-030-913-5 | rotair industries inc | washer recessed | RFQ |
| 204-030-913-5 | alco machine co inc | washer recessed | RFQ |
| 204-030-913-5 | finmeccanica spa helicopters | washer recessed | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.625 INCHES MINIMUM AND 0.635 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 2.000 INCHES NOMINAL |
| ABMD | RECESS DIAMETER | 0.725 INCHES MINIMUM AND 0.735 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.390 INCHES NOMINAL |
| CSTM | RECESS ANGLE | 90.0 DEGREES NOMINAL |
| CSYM | SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES |
| FEAT | SPECIAL FEATURES | OD CHAMFERED 0.320 IN. BY 45 DEG AND ID OPPOSITE RECESS COUNTERBORED 1.000 IN. DIA BY 0.075 IN. DEEP |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,TEMPER T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED |
| Relevant Components for NSN - 5310-00-437-8948, 5310004378948 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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