The Split-Ring,valve, cataloged under National Stock Number 4820-01-494-3165, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
Split-Ring,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-01-494-3165
Item Name
Split-Ring,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)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-494-3179S2D10625-1POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Vacco Industries
4820-01-494-3524V3D10432-01POSSIBLE MATCH
VALVE-HAND,BYPASS
Possible match (shared part number)Vacco Industries
4820-01-494-3539V3D10425-07POSSIBLE MATCH
VALVE-HAND,BYPASS
Possible match (shared part number)Vacco Industries
4820-01-494-3857V3D10423-04POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Vacco Industries
4820-01-494-4260V3E10105-01POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Vacco Industries
4820-01-494-4827V3E10105-02POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Vacco Industries
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
S1E10207
D/9Drawing number reference only
U.S. Government activity
S1E10207-01 ITEM 24
5/2Secondary reference
U.S. Government activity
V2D12014-1
3/2Design control — primary reference
U.S. Government activity
Related Parts
4820-01-494-3179POSSIBLE MATCH
CAP,VALVE
S2D10625-1
4820-01-494-3524POSSIBLE MATCH
VALVE-HAND,BYPASS
V3D10432-01
4820-01-494-3539POSSIBLE MATCH
VALVE-HAND,BYPASS
V3D10425-07
4820-01-494-3857POSSIBLE MATCH
VALVE,SAFETY RELIEF
V3D10423-04
4820-01-494-4260POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
V3E10105-01
4820-01-494-4827POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
V3E10105-02
Frequently Asked Questions
What is NSN 4820-01-494-3165?
NSN 4820-01-494-3165 is a Split-Ring,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-494-3165?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-494-3179, 4820-01-494-3524, 4820-01-494-3539. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-494-3165 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.