The Nut,self-Locking,round, cataloged under National Stock Number 5310-01-331-1190, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bristol Industries, Llc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Howmet Global Fastening Systems Inc (CAGE 15653); Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAGE L4528); Bristol Industries, Llc (CAGE 27238); Hi-Shear Corporation (CAGE 73197) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-331-1190 |
| Primary Part Number | S4932389-4 |
| Item Name | Nut,self-Locking,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bristol Industries, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| S4932389-4 | Howmet Global Fastening Systems Inc (USA) |
| S4932389-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| S4932389-4 PRIMARY | Bristol Industries, Llc (USA) |
| S4932389-4 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| S4932389-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-331-1190 is a Nut,self-Locking,round, manufactured by Bristol Industries, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-331-1190 has 4 manufacturer part numbers on file: S4932389-4 (Howmet Global Fastening Systems Inc), S4932389-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), S4932389-4 (Bristol Industries, Llc), S4932389-4 (Hi-Shear Corporation).
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.