The Piston,valve, cataloged under National Stock Number 4820-01-290-8382, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
Piston,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-01-290-8382
Item Name
Piston,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
7643-01-405-19702201 16POSSIBLE MATCH
TOPOGRAPHIC GEOSPATIAL PRODUCTS
Possible match (shared part number)National Geospatial-Intelligence Agency Etds Mailstop J 21
4820-01-472-331722-0116POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Sea-Tech Systems, Inc. Dba Sea Tech Systems
6550-01-474-0651220116POSSIBLE MATCH
BACTERIOLOGICAL SPECIMEN COLLECT
Possible match (shared part number)Becton, Dickinson and Co Dba Becton Dickinson & Co
4730-01-607-1510220116POSSIBLE MATCH
CLAMP,HOSE
Possible match (shared part number)Terex Usa, Llc Dba Terex Usa, Llc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
220116
3/2Design control — primary reference
U.S. Government activity
Related Parts
7643-01-405-1970POSSIBLE MATCH
TOPOGRAPHIC GEOSPATIAL PRODUCTS
2201 16
4820-01-472-3317POSSIBLE MATCH
CAP,VALVE
22-0116
6550-01-474-0651POSSIBLE MATCH
BACTERIOLOGICAL SPECIMEN COLLECT
220116
4730-01-607-1510POSSIBLE MATCH
CLAMP,HOSE
220116
Frequently Asked Questions
What is NSN 4820-01-290-8382?
NSN 4820-01-290-8382 is a Piston,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-290-8382?
4 possible matches (shared part number, not a government interchangeability claim): 7643-01-405-1970, 4820-01-472-3317, 6550-01-474-0651. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-290-8382 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.