The Nut,plain,extended Washer,double, cataloged under National Stock Number 5310-00-012-4483, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-012-4483 |
| Primary Part Number | 618105 |
| Item Name | Nut,plain,extended Washer,double |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Washer Outside Diameter | 0.443 INCHES NOMINAL IN |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Washer Thickness | 0.050 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 618105 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5310-00-012-4483 is a Nut,plain,extended Washer,double, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-012-4483 has 1 manufacturer part number on file: 618105 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 618105: Overall Height: 0.411 INCHES NOMINAL IN; Washer Outside Diameter: 0.443 INCHES NOMINAL IN; Width Across Flats: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 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.