NSN 4820-01-265-3156 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-265-3156. Manufacturer of record part number: 540195.
The Valve Assembly,dis, cataloged under National Stock Number 4820-01-265-3156, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Austin-Westran Llc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve Assembly,dis
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Austin-Westran Llc (CAGE 24234); Am General Llc (CAGE 34623); Am General Llc (CAGE 9C234)
Technical Specifications
Parameter
Value
NSN
4820-01-265-3156
Primary Part Number
540195
Item Name
Valve Assembly,dis
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Austin-Westran Llc
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-265-3159540196POSSIBLE MATCH
VALVE ASSEMBLY,SUC
Possible match (shared part number)Austin-Westran Llc
NSN 4820-01-265-3156 is a Valve Assembly,dis, manufactured by Austin-Westran Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-265-3156?
NSN 4820-01-265-3156 has 3 manufacturer part numbers on file: 540195 (Austin-Westran Llc), 5597546 (Am General Llc), 5597546 (Am General Llc).
What NSN replaces 4820-01-265-3156?
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-265-3159, 5331-01-365-4409. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-265-3156 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.