| Item Name | Washer Flat |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-503-4422 (015034422) |
| NCB Code | USA (01) |
| Manufacturer | Northrop Grumman Systems Corporation, Moog Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| A51H30510-11 | northrop grumman systems corporation | washer flat | 79rg9 | RFQ |
| C64135-002 | moog inc | washer flat | 0zwk8 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR |
| AAUB | HOLE DIAMETER | 0.332 INCHES MINIMUM AND 0.342 INCHES MAXIMUM |
| ABMW | PERIPHERAL SHAPE STYLE | ROUND |
| ABMX | CENTER HOLE SHAPE STYLE | ROUND |
| ABNM | THICKNESS | 0.078 INCHES NOMINAL |
| ADAV | OVERALL DIAMETER | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM |
| CQFM | HARDNESS RATING | 42.0 ROCKWELL H MINIMUM AND 59.0 ROCKWELL H MAXIMUM |
| CRJY | INSIDE LEFT CORNER CHAMFER ANGLE | 30.0 DEGREES NOMINAL |
| FEAT | SPECIAL FEATURES | WASHER/RETAINER, COUNTERSUNK - SPECIAL; TOP OF WASHER IS .251 MIN DIA AND .255 MAX DIA (INCHES); COUNTERSUNK IS .042 INCHES DEEP |
| HEAT | III HEAT TREATMENT | ANNEALED |
| MATT | MATERIAL | STEEL COMP 4130 OVERALL |
| Components Related to NSN - 5310-01-503-4422, 5310015034422 | ||||
| 5365-01-353-6485 (5365013536485) | 5365-01-314-0869 (5365013140869) | 5365-01-538-9415 (5365015389415) | 5330-01-360-0946 (5330013600946) | |
| 5330-01-260-4708 (5330012604708) | 5342-01-109-4185 (5342011094185) | 5331-01-608-0793 (5331016080793) | 5305-00-298-4681 (5305002984681) | |
| 5315-00-514-0217 (5315005140217) | 5330-01-528-4162 (5330015284162) | 5310-01-312-3813 (5310013123813) | 5360-00-969-4423 (5360009694423) | |
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