The Valve Assembly, cataloged under National Stock Number 4820-01-501-8396, 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1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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.
Technical Specifications
Parameter
Value
NSN
4820-01-501-8396
Item Name
Valve Assembly
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Valve Operation Method
AUTOMATIC
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.
4730-01-501-8430POSSIBLE MATCH
TEE,TUBE
Possible match (shared part number)
4820-01-501-8587POSSIBLE MATCH
BODY,VALVE
Possible match (shared part number)
4820-01-501-8686POSSIBLE MATCH
BODY,VALVE
Possible match (shared part number)
4730-01-501-8745POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
Possible match (shared part number)
4730-01-501-8763POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-501-9227POSSIBLE MATCH
TEE ASSEMBLY,FLANGED,QUICK DISCO
Possible match (shared part number)
4730-01-501-9573POSSIBLE MATCH
REDUCER,BOSS
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
9955-005-003 ITEM 1A
5/9Secondary reference
Acorn Engineering Company Dba Whitehall Manufacturing Co
9955-005-003
D/9Drawing number reference only
Acorn Engineering Company Dba Whitehall Manufacturing Co
2590-200-001
3/9Design control — primary reference
Acorn Engineering Company Dba Whitehall Manufacturing Co
Related Parts
4730-01-501-8430POSSIBLE MATCH
TEE,TUBE
4820-01-501-8587POSSIBLE MATCH
BODY,VALVE
4820-01-501-8686POSSIBLE MATCH
BODY,VALVE
4730-01-501-8745POSSIBLE MATCH
RESTRICTOR,FLUID FLOW
4730-01-501-8763POSSIBLE MATCH
NUT,TUBE COUPLING
4730-01-501-9227POSSIBLE MATCH
TEE ASSEMBLY,FLANGED,QUICK DISCO
4730-01-501-9573POSSIBLE MATCH
REDUCER,BOSS
Frequently Asked Questions
What is NSN 4820-01-501-8396?
NSN 4820-01-501-8396 is a Valve Assembly, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-501-8396?
7 possible matches (shared part number, not a government interchangeability claim): 4730-01-501-8430, 4820-01-501-8587, 4820-01-501-8686. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-501-8396?
Key specifications for 4820-01-501-8396: Special Features: NHA LAV-TOILET CO,.5 GPM; Valve Operation Method: AUTOMATIC. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-501-8396 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.