The Pump Assembly, cataloged under National Stock Number 1020-00-384-4057, is classified within Federal Supply Class 1020 (Guns, Over 125mm Through 150mm) of the Weapons group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Pump Assembly |
| FSC / FSG | 1020 — Guns, Over 125mm Through 150mm (FSG 10) |
| Manufacturers | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001) |
| Parameter | Value |
|---|---|
| NSN | 1020-00-384-4057 |
| Primary Part Number | 273613 |
| Item Name | Pump Assembly |
| FSC / FSG | 1020 / 10 — Guns, Over 125mm Through 150mm |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 273613 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 1020-00-384-4057 is a Pump Assembly, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1020, Guns, Over 125mm Through 150mm. Status: active.
NSN 1020-00-384-4057 has 1 manufacturer part number on file: 273613 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
3 possible matches (shared part number, not a government interchangeability claim): 5315-00-684-9970, 5330-00-789-0410, 5130-01-144-7873. 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.
NSN 1020-00-384-4057 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.