AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-503-4419 (015034419) |
| NCB Code | USA (01) |
| Manufacturer | Northrop Grumman Systems Corporation, Moog Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| A51H30510-13 | northrop grumman systems corporation | washer flat | RFQ |
| C64135-001 | moog inc | washer flat | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | Cross-Sectional Shape Style | RECTANGULAR |
| MATT | Material | STEEL COMP 4130 OVERALL |
| ABMW | Peripheral Shape Style | ROUND |
| FEAT | Special Features | WASHER/RETAINER, COUNTERSUNK - SPECIAL; TOP OF WASHER IS .251 MIN DIA AND .255 MAX DIA (INCHES); COUNTERSUNK IS .042 INCHES DEEP |
| ABMX | Center Hole Shape Style | ROUND |
| ADAV | Overall Diameter | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| ABNM | Thickness | 0.078 INCHES NOMINAL |
| AAUB | Hole Diameter | 0.332 INCHES MINIMUM AND 0.342 INCHES MAXIMUM |
| CQFM | Hardness Rating | 42.0 ROCKWELL H MINIMUM AND 59.0 ROCKWELL H MAXIMUM |
| MRC | Decoded Requirement | Clear Text Reply |
| CRJY | Inside Left Corner Chamfer Angle | 30.0 DEGREES NOMINAL |
| HEAT | Heat Treatment | ANNEALED |
| Relevant Components for NSN - 5310-01-503-4419, 5310015034419 | ||||
| 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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