The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-558-7456, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Gapco Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Gapco Inc (CAGE 50761); Rolls-Royce Marine North America Inc. (CAGE 38ZC7) |
| Parameter | Value |
|---|---|
| NSN | 5310-00-558-7456 |
| Primary Part Number | JL1032 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Gapco Inc |
| 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 |
|---|---|
| JL1032 PRIMARY | Gapco Inc (USA) |
| 6746975 | Rolls-Royce Marine North America Inc. (USA) |
| Reference | Meaning |
|---|---|
| 6746975 | 5/9 Secondary reference Rolls-Royce Corporation |
| 6746975 | 5/9 Secondary reference General Motors Corp |
| F5K1032-2 | 3/2 Design control — primary reference U.S. Government activity |
| 5310PL0921468 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 6746975 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| F5K1032-2 | 3/9 Design control — primary reference Dual Machine Corporation Dba Dual Machine Corp |
| JL10321 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5310-00-558-7456 is a Nut,self-Locking,hexagon, manufactured by Gapco Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-558-7456 has 2 manufacturer part numbers on file: JL1032 (Gapco Inc), 6746975 (Rolls-Royce Marine North America Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-463-8817, 5310-01-669-3860. 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.