The Stem,needle Valve, cataloged under National Stock Number 4820-01-361-5949, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
Stem,needle Valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-01-361-5949
Item Name
Stem,needle 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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-421-2228211074851POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Naval Sea Systems Command
4820-01-429-4380POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)
4820-01-443-2263236532-0001POSSIBLE MATCH
REGULATING ELEMENT,FLOW,VALVE
Possible match (shared part number)Marotta Controls Inc
4820-01-443-4815195808-0016POSSIBLE MATCH
RETAINER,SEAT,VALVE
Possible match (shared part number)Marotta Controls Inc
4820-01-443-4817195806-0063POSSIBLE MATCH
RETAINER,SEAT,VALVE
Possible match (shared part number)Marotta Controls Inc
4820-01-443-4826195805-0063POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Marotta Controls Inc
4820-01-443-5020195809-0733POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Marotta Controls Inc
4820-01-443-88764050101-0032POSSIBLE MATCH
BALL,CHECK
Possible match (shared part number)Marotta Controls Inc
5305-01-467-60744201811-1102POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
Possible match (shared part number)Marotta Controls Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
233029-0004
5/2Secondary reference
U.S. Government activity
284046-0002 ITEM 1
5/2Secondary reference
U.S. Government activity
233029-0004
3/2Design control — primary reference
U.S. Government activity
233029
D/9Drawing number reference only
U.S. Government activity
284046-0002
D/9Drawing number reference only
U.S. Government activity
Related Parts
4820-01-421-2228POSSIBLE MATCH
VALVE,SAFETY RELIEF
211074851
4820-01-429-4380POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
4820-01-443-2263POSSIBLE MATCH
REGULATING ELEMENT,FLOW,VALVE
236532-0001
4820-01-443-4815POSSIBLE MATCH
RETAINER,SEAT,VALVE
195808-0016
4820-01-443-4817POSSIBLE MATCH
RETAINER,SEAT,VALVE
195806-0063
4820-01-443-4826POSSIBLE MATCH
STEM,FLUID VALVE
195805-0063
4820-01-443-5020POSSIBLE MATCH
SEAT,VALVE
195809-0733
4820-01-443-8876POSSIBLE MATCH
BALL,CHECK
4050101-0032
5305-01-467-6074POSSIBLE MATCH
SCREW,CAP,SOCKET HEAD
4201811-1102
Frequently Asked Questions
What is NSN 4820-01-361-5949?
NSN 4820-01-361-5949 is a Stem,needle Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-361-5949?
9 possible matches (shared part number, not a government interchangeability claim): 4820-01-421-2228, 4820-01-429-4380, 4820-01-443-2263. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-361-5949 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.