The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-588-5831, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-588-5831 |
| Primary Part Number | 110166992 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Washer Outside Diameter | 1.330 INCHES NOMINAL IN |
| Width Across Flats | 0.922 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM F1941, FE/ZN 3 AT ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Washer Thickness | 0.100 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Surface Treatment | ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 11 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 110166992 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
| Reference | Meaning |
|---|---|
| 6001923 | 5/2 Secondary reference U.S. Government activity |
| 12759-01016 | 5/9 Secondary reference Fastenal Company Dba Fastenal Co |
NSN 5310-01-588-5831 is a Nut,self-Locking,extended Washer, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-588-5831 has 1 manufacturer part number on file: 110166992 (Fastenal Company Dba Fastenal Co).
Key specifications for 110166992: Overall Height: 0.690 INCHES NOMINAL IN; Washer Outside Diameter: 1.330 INCHES NOMINAL IN; Width Across Flats: 0.922 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM F1941, FE/ZN 3 AT ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.