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) | 01-184-3786 (011843786) |
| NCB Code | USA (01) |
| Manufacturer | All Power Manufacturing Co Inc, Tect Aerospace Inc, Anillo Industries Inc, Boeing Company The, Pioneer Machine Products Inc, Lmi Aerospace Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 4M248-1 | all power manufacturing co inc | washer key | RFQ |
| 4M248-1 | tect aerospace inc | washer key | RFQ |
| 4M248-1 | anillo industries inc | washer key | RFQ |
| 4M248-1 | boeing company the | washer key | RFQ |
| 4M248-1 | pioneer machine products inc | washer key | RFQ |
| M4248-1 | lmi aerospace inc | washer key | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAUB | HOLE DIAMETER | 0.785 INCHES MINIMUM AND 0.800 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.200 INCHES NOMINAL |
| ABLG | TAPERED KEY MINOR WIDTH | 0.120 INCHES NOMINAL |
| ABLX | OVERALL DISTANCE INCLUDING KEYS | 1.470 INCHES MINIMUM AND 1.570 INCHES MAXIMUM |
| ABPX | MATERIAL THICKNESS | 0.063 INCHES NOMINAL |
| CRZZ | WIRE HOLE DIAMETER | 0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | DISTANCE FROM WIRE HOLE CENTER TO END OF TAPERED KEY 0.060 IN.; DISTANCE FROM WIRE HOLE CENTER TO TOP OF TAPERED PREBENT KEY 0.120 IN.; TAPERED KEY PREBENT 30 DEG MIN,40 DEG MAX; HOLE WIDTH ACROSS FLATS 0.655 IN. MIN,0.670 IN. MAX; DISTANCE |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CHROMATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,TY 2,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Relevant Components for NSN - 5310-01-184-3786, 5310011843786 | ||||
| 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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