The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-339-2074, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Esna, Llc (CAGE 019L2); Bristol Industries, Llc (CAGE 27238); Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (CAGE 16258) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-339-2074 |
| Primary Part Number | 80995-428 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 80995-428 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| LH13234-4 PRIMARY | Esna, Llc (USA) |
| BH00582-4 PRIMARY | Bristol Industries, Llc (USA) |
| SLN137-4 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| 3D0021-4 | 5/2 Secondary reference U.S. Government activity |
| LH13234-4 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-339-2074 is a Nut,self-Locking,extended Washer, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-339-2074 has 4 manufacturer part numbers on file: 80995-428 (Sps Technologies, Llc Dba PB Fasteners), LH13234-4 (Esna, Llc), BH00582-4 (Bristol Industries, Llc), SLN137-4 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
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.