NSN 4820-01-296-0508 · NIIN 012960508 · Part number 390-0258
Atlas Polar Company Limited Div Atlas Polar Company Ltd · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 36513
Government record, cited
NSN 4820-01-296-0508 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-296-0508. Manufacturer of record part number: 390-0258.
Nearby stock numbers← 4820-01-296-0426 Parts Kit, Pressure Regulating VA
·
4820-01-296-1738 Poppet, Lower →
4820-01-296-0508 — Valves, Nonpowered
Features
Valve Suction — FSC 4820
2 manufacturer part numbers on file
Manufacturer of record: Atlas Polar Company Limited Div Atlas Polar Company Ltd
Identification
NSN: 4820-01-296-0508
NIIN: 012960508
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 390-0258
Manufacturer: Atlas Polar Company Limited Div Atlas Polar Company Ltd
General Description
The Valve Suction, cataloged under National Stock Number 4820-01-296-0508, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atlas Polar Company Limited Div Atlas Polar Company Ltd. 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.
Technical Specifications
Parameter
Value
NSN
4820-01-296-0508
Primary Part Number
390-0258
Item Name
Valve Suction
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Atlas Polar Company Limited Div Atlas Polar Company Ltd
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
NSN 4820-01-296-0508 is a Valve Suction, manufactured by Atlas Polar Company Limited Div Atlas Polar Company Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-296-0508?
NSN 4820-01-296-0508 has 2 manufacturer part numbers on file: 390-0258 (Atlas Polar Company Limited Div Atlas Polar Company Ltd), 10560082 (General Dynamics Land Systems Canadacorp).
What NSN replaces 4820-01-296-0508?
1 possible match (shared part number, not a government interchangeability claim): 7025-01-584-7309. Verify interchangeability with system specifications before substitution.
What are the specifications of 390-0258?
Key specifications for 390-0258: End Item Identification: 2320011231608. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-296-0508 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.