The Locknut, cataloged under National Stock Number 5310-01-182-4027, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is W Machine Works Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Locknut |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | W Machine Works Inc (CAGE 0BJV5); Schneiders Manufacturing Inc (CAGE 3R647); Prescott Aerospace, Inc. Dba Prescott Aerospace Inc (CAGE 0BR71) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-182-4027 |
| Primary Part Number | 387-3559 |
| Item Name | Locknut |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | W Machine Works 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 |
|---|---|
| 387-3559 | W Machine Works Inc (USA) |
| 387-3559 | Schneiders Manufacturing Inc (USA) |
| 387-3559 | Prescott Aerospace, Inc. Dba Prescott Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| 387-3559 | 5/9 Secondary reference The Boeing Company |
| 387-3559 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| 387-3559 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corp Div Weapon System |
| 387-3559 | 3/9 Design control — primary reference Alliant Techsystems Operations Llc |
NSN 5310-01-182-4027 is a Locknut, manufactured by W Machine Works Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-182-4027 has 3 manufacturer part numbers on file: 387-3559 (W Machine Works Inc), 387-3559 (Schneiders Manufacturing Inc), 387-3559 (Prescott Aerospace, Inc. Dba Prescott Aerospace Inc).
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.