NSN 4730-01-185-2359 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-185-2359. Manufacturer of record part number: SW503-3X1.
Also searched as4730-01-185-2359 ·
4730011852359 ·
NIIN 011852359 ·
01-185-2359 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 63220 · SW503-3X1
4730-01-185-2359 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Reducer,tube — FSC 4730
Connection Style: PLAIN (TUBE) SECOND END
Connection Style: SOCKET (TUBE) FIRST END
Nominal Overall Length: 1.890 INCHES IN
Connection Type: UNTHREADED INTERNAL TUBE FIRST END
Connection Type: UNTHREADED EXTERNAL TUBE SECOND END
Nominal Outside Diameter Tube Accommodated: 1.000 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated: 3.000 INCHES FIRST END IN
Identification
NSN: 4730-01-185-2359
NIIN: 011852359
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: SW503-3X1
Manufacturer: Flowserve Inc
General Description
The Reducer,tube, cataloged under National Stock Number 4730-01-185-2359, 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 Flowserve Inc. Government technical data includes 11 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. Current acquisition status: Active.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-01-185-2359?
NSN 4730-01-185-2359 is a Reducer,tube, manufactured by Flowserve Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-185-2359?
NSN 4730-01-185-2359 has 1 manufacturer part number on file: SW503-3X1 (Flowserve Inc).
What are the specifications of SW503-3X1?
Key specifications for SW503-3X1: Connection Style: PLAIN (TUBE) SECOND END; Connection Style: SOCKET (TUBE) FIRST END; Nominal Overall Length: 1.890 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 11 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-185-2359 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.