The Nut,plain,clinch, cataloged under National Stock Number 5310-01-332-1907, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kirby Morgan Dive Systems Inc. Government technical data includes 3 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-332-1907 |
| Primary Part Number | 550-081 |
| Item Name | Nut,plain,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kirby Morgan Dive Systems Inc |
| Status | ACTIVE |
| Thread Series | UNEF |
| Nominal Thread Size | 1.000 INCHES IN |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 550-081 PRIMARY | Kirby Morgan Dive Systems Inc (USA) |
| 592-6318262 | Naval Sea Systems Command (USA) |
NSN 5310-01-332-1907 is a Nut,plain,clinch, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-332-1907 has 2 manufacturer part numbers on file: 550-081 (Kirby Morgan Dive Systems Inc), 592-6318262 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-349-4366. Verify interchangeability with system specifications before substitution.
Key specifications for 550-081: Thread Series: UNEF; Nominal Thread Size: 1.000 INCHES IN; Special Features: MK21 MOD1 DIVING HELMET; Thread Quantity Per Inch: 20. 3 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.