The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-717-7300, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-717-7300 |
| Primary Part Number | 231-2839 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Nominal Thread Size | 4.0 MILLIMETERS MM |
| Nut Style | HEXAGON |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-717-7300 is a Nut,plain,extended Washer,hexago, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-717-7300 has 2 manufacturer part numbers on file: 231-2839 (Caterpillar Inc Div Caterpillar Defense), A25103 (Unac).
Key specifications for 231-2839: Overall Height: 4.2 MILLIMETERS NOMINAL MM; Nominal Thread Size: 4.0 MILLIMETERS MM; Part Name Assigned by Controlling Agency: NUT-HEX FLANGE; Nut Style: HEXAGON. 2 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.