NSN 4820-01-391-3303 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-391-3303. Manufacturer of record part number: 4.7392.0.
The Valve,check, cataloged under National Stock Number 4820-01-391-3303, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kaeser Compressors, Inc.. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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
4820-01-391-3303
Primary Part Number
4.7392.0
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Kaeser Compressors, 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 Items1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5340-01-451-3345473920POSSIBLE MATCH
BUMPER
Possible match (shared part number)Itw Food Equipment Group Llc Dba Hobart Service
NSN 4820-01-391-3303 is a Valve,check, manufactured by Kaeser Compressors, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-391-3303?
NSN 4820-01-391-3303 has 2 manufacturer part numbers on file: 4.7393.0 (Kaeser Compressors, Inc.), 4.7392.0 (Kaeser Compressors, Inc.).
What NSN replaces 4820-01-391-3303?
1 possible match (shared part number, not a government interchangeability claim): 5340-01-451-3345. Verify interchangeability with system specifications before substitution.
What are the specifications of 4.7392.0?
Key specifications for 4.7392.0: End Item Identification: AIR COMPRESSOR;KAESER COMPRESSORS INC. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-391-3303 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.