NSN 4820-01-574-9673 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-574-9673. Manufacturer of record part number: 264103.
The Valve,check, cataloged under National Stock Number 4820-01-574-9673, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Vanair Manufacturing Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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,check
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Vanair Manufacturing Inc (CAGE 1EAE2)
Technical Specifications
Parameter
Value
NSN
4820-01-574-9673
Primary Part Number
264103
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Vanair Manufacturing Inc
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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-574-9755267512POSSIBLE MATCH
BRACKET,MOUNTING
Possible match (shared part number)Vanair Manufacturing Inc
3010-01-574-9768267576POSSIBLE MATCH
FLANGE,COMPANION,NONVEHICULAR UN
Possible match (shared part number)Vanair Manufacturing Inc
4720-01-574-9857267674POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Vanair Manufacturing Inc
4720-01-574-9860267675POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Vanair Manufacturing Inc
4720-01-574-9953267676POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Vanair Manufacturing Inc
4720-01-574-9956267677POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Vanair Manufacturing Inc
4720-01-574-9958267679POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Vanair Manufacturing Inc
NSN 4820-01-574-9673 is a Valve,check, manufactured by Vanair Manufacturing Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-574-9673?
NSN 4820-01-574-9673 has 1 manufacturer part number on file: 264103 (Vanair Manufacturing Inc).
What NSN replaces 4820-01-574-9673?
7 possible matches (shared part number, not a government interchangeability claim): 5340-01-574-9755, 3010-01-574-9768, 4720-01-574-9857. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-574-9673 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.