The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-397-5100, 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. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Westrac Equipment Pty Ltd (CAGE Z4K43); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Westrac Pty Ltd (CAGE ZY243); Unac (CAGE F8357) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-397-5100 |
| Primary Part Number | 5C-7261 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 5C-7261 | Westrac Equipment Pty Ltd (AUS) |
| 5C-7261 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 5C-7261 | Westrac Pty Ltd (AUS) |
| A06089 | Unac (FRA) |
| Reference | Meaning |
|---|---|
| 6HA141 | 5/9 Secondary reference Oshkosh Corp |
| 6HA141 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5310-01-397-5100 is a Nut,plain,hexagon, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-397-5100 has 4 manufacturer part numbers on file: 5C-7261 (Westrac Equipment Pty Ltd), 5C-7261 (Caterpillar Inc Div Caterpillar Defense), 5C-7261 (Westrac Pty Ltd), A06089 (Unac).
1 possible match (shared part number, not a government interchangeability claim): 6230-01-584-9966. Verify interchangeability with system specifications before substitution.
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.