| Item Name | Nut Self Locking Extended Washer |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5310 Nuts and Washers |
| National Item Identification Number (NIIN) | 01-371-8419 (013718419) |
| NCB Code | USA (01) |
| Manufacturer | Bae Systems Land And Armaments Inc, Bae Systems Tactical Vehicle Systems, Oshkosh Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUM | LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| ABKW | OVERALL HEIGHT | 20.4 MILLIMETERS MINIMUM AND 20.5 MILLIMETERS MAXIMUM |
| ADEM | WASHER THICKNESS | 2.7 MILLIMETERS MINIMUM AND 3.2 MILLIMETERS MAXIMUM |
| ASDB | WIDTH ACROSS FLATS | 26.4 MILLIMETERS MINIMUM AND 27.6 MILLIMETERS MAXIMUM |
| AGAV | END ITEM IDENTIFICATION | MRAP; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS) |
| CQJX | NOMINAL THREAD SIZE | 18.0 MILLIMETERS |
| MATT | MATERIAL | STEEL OVERALL |
| AAVX | WASHER OUTSIDE DIAMETER | 38.6 MILLIMETERS NOMINAL |
| ACTA | NUT STYLE | HEXAGON |
| BZRR | THREAD SERIES | M |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.50 |
| CTTC | THREAD TOLERANCE CLASS | 6H INTERNAL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| Relevant Components for NSN - 5310-01-371-8419, 5310013718419 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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