| 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) | 01-619-3657 (016193657) |
| NCB Code | USA (01) |
| Manufacturer | Fastenal Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| MATT | Material | STEEL COMP 1050 WASHER |
| ASDB | Width Across Flats | 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| STDC | Surface Treatment Document And Classification | FE/ZN 3AT PER ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| MDCL | Material Document And Classification | AISI 1050 OR EQUIVALENT MEDIUM CARBON STEEL ASSN STD SINGLE MATERIAL RESPONSE WASHER |
| MDCL | Material Document And Classification | LOW CARBON STEEL MFR REF SINGLE MATERIAL RESPONSE NUT |
| MATT | Material | STEEL NUT |
| CQJX | Nominal Thread Size | 0.250 INCHES |
| CMLP | Thread Quantity Per Inch | 20 |
| CXCY | Part Name Assigned By Controlling Agency | 1/4"-20 ZINC FINISH GRADE KEPS LOCK NUT WITH EXTERNAL TOOTH LOCKWASHER |
| ABKW | Overall Height | 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| BZRR | Thread Series | UNC |
| ACTA | Nut Style | HEXAGON |
| MRC | Decoded Requirement | Clear Text Reply |
| AAJF | Thread Direction | RIGHT-HAND |
| SFTT | Surface Treatment | ZINC OVERALL |
| AAVX | Washer Outside Diameter | 0.494 INCHES MINIMUM AND 0.506 INCHES MAXIMUM |
| AAJD | Thread Class | 2B |
| AAUM | Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| AGAV | End Item Identification | 4120-01-585-1564 |
| Relevant Components for NSN - 5310-01-619-3657, 5310016193657 | ||||
| 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) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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