NSN 4820-00-334-3863 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-334-3863. Manufacturer of record part number: 43078.
Also searched as4820-00-334-3863 ·
4820003343863 ·
NIIN 003343863 ·
00-334-3863 ·
FSC 4820 Valves, Nonpowered · CAGE 53059 · 43078
The Disk,valve, cataloged under National Stock Number 4820-00-334-3863, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 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
4820-00-334-3863
Primary Part Number
43078
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Spirax Sarco Inc Dba Spirax Sarco
Status
ACTIVE
Outside Diameter
0.620 INCHES NOMINAL IN
Style Designator
PLUG
Seat Angle
30.0 DEGREES NOMINAL
Nominal Thread Size
0.313 INCHES IN
Thread Class
2B
Material
STEEL CORROSION RESISTING
Thread Series Designator
UNF
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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5915-00-456-0869SMD198209POSSIBLE MATCH
CAPACITOR-RESISTOR
Possible match (shared part number)Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5360-01-050-2947N43078POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
9540-01-072-9578POSSIBLE MATCH
BEAM,STRUCTURAL
Possible match (shared part number)
2990-01-173-966143078POSSIBLE MATCH
HANGER,ENGINE EXHAUST SYSTEM
Possible match (shared part number)Terex Reedrill Dba Reedrill Texoma Div Terex Mining
5365-01-373-322643078POSSIBLE MATCH
RING,EXTERNALLY THREADED
Possible match (shared part number)Eaton Aerospace Llc Dba Eaton Aerospace Jackson
NSN 4820-00-334-3863 is a Disk,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-334-3863?
NSN 4820-00-334-3863 has 1 manufacturer part number on file: 43078 (Spirax Sarco Inc Dba Spirax Sarco).
What NSN replaces 4820-00-334-3863?
5 possible matches (shared part number, not a government interchangeability claim): 5915-00-456-0869, 5360-01-050-2947, 9540-01-072-9578. Verify interchangeability with system specifications before substitution.
What are the specifications of 43078?
Key specifications for 43078: Overall Height: 0.950 INCHES NOMINAL IN; Outside Diameter: 0.620 INCHES NOMINAL IN; Style Designator: PLUG; Seat Angle: 30.0 DEGREES NOMINAL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-334-3863 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.