NSN 4730-01-203-0592 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-203-0592. Manufacturer of record part number: J428.
Also searched as4730-01-203-0592 ·
4730012030592 ·
NIIN 012030592 ·
01-203-0592 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53059 · J428 · FD-2
4730-01-203-0592 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Trap,steam — FSC 4730
Design Type: FLOAT
Inlet Connection Type: FLANGED
Material: COPPER ALLOY BODY
Flange Outside Diameter: 2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Furnished Items: GAGE GLASS
Outlet Connection Type: FLANGED
2 manufacturer part numbers on file
Identification
NSN: 4730-01-203-0592
NIIN: 012030592
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: J428
Manufacturer: Spirax Sarco Inc Dba Spirax Sarco
General Description
The Trap,steam, cataloged under National Stock Number 4730-01-203-0592, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
NSN 4730-01-203-0592 is a Trap,steam, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-203-0592?
NSN 4730-01-203-0592 has 2 manufacturer part numbers on file: J428 (Spirax Sarco Inc Dba Spirax Sarco), FD-2 (Spirax Sarco Inc Dba Spirax Sarco).
What NSN replaces 4730-01-203-0592?
4 possible matches (shared part number, not a government interchangeability claim): 7320-01-283-2073, 3439-01-353-9949, 4210-01-354-3366. Verify interchangeability with system specifications before substitution.
What are the specifications of J428?
Key specifications for J428: Design Type: FLOAT; Inlet Connection Type: FLANGED; Material: COPPER ALLOY BODY; Flange Outside Diameter: 2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-203-0592 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.