The Piston,valve, cataloged under National Stock Number 4820-00-369-7873, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
4820-00-369-7873
Item Name
Piston,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Material
STEEL
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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5998-00-414-79994696POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
Possible match (shared part number)Contraves Inc
3120-00-780-5876DS933929POSSIBLE MATCH
BEARING,WASHER,THRUST
Possible match (shared part number)Eaton Aerospace, Llc Dba Jackson South
4730-01-191-86704696-00POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
Possible match (shared part number)Pentair Filtration Solutions, Llc
4240-01-250-91124696POSSIBLE MATCH
HOSE,STARTER,RESPIRATOR
Possible match (shared part number)E. D. Bullard Company Dba Ed Bullard Co
7025-01-259-83924696POSSIBLE MATCH
PRINTER,AUTOMATIC DATA PROCESSIN
Possible match (shared part number)Tektronix, Inc.
4420-01-549-91039990-0089-744POSSIBLE MATCH
HEAT EXCHANGER NSC
Possible match (shared part number)Gea Westfalia Separator, Inc. Div Gea Westfalia Separator, Inc.
6520-01-556-0843973-0222POSSIBLE MATCH
ADAPTER,CHARGER,BATTERY
Possible match (shared part number)Sybronendo
5130-01-648-4009POSSIBLE MATCH
SOCKET SET,SOCKET WRENCH
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
4696
3/2Design control — primary reference
U.S. Government activity
Related Parts
5998-00-414-7999POSSIBLE MATCH
CIRCUIT CARD ASSEMBLY
4696
3120-00-780-5876POSSIBLE MATCH
BEARING,WASHER,THRUST
DS933929
4730-01-191-8670POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
4696-00
4240-01-250-9112POSSIBLE MATCH
HOSE,STARTER,RESPIRATOR
4696
7025-01-259-8392POSSIBLE MATCH
PRINTER,AUTOMATIC DATA PROCESSIN
4696
4420-01-549-9103POSSIBLE MATCH
HEAT EXCHANGER NSC
9990-0089-744
6520-01-556-0843POSSIBLE MATCH
ADAPTER,CHARGER,BATTERY
973-0222
5130-01-648-4009POSSIBLE MATCH
SOCKET SET,SOCKET WRENCH
Frequently Asked Questions
What is NSN 4820-00-369-7873?
NSN 4820-00-369-7873 is a Piston,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-00-369-7873?
8 possible matches (shared part number, not a government interchangeability claim): 5998-00-414-7999, 3120-00-780-5876, 4730-01-191-8670. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-00-369-7873?
Key specifications for 4820-00-369-7873: Overall Length: 1.375 INCHES NOMINAL IN; Material: STEEL. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-00-369-7873 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.