NSN 4730-01-355-9775 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-355-9775. Manufacturer of record part number: A300-250-51/109.
Also searched as4730-01-355-9775 ·
4730013559775 ·
NIIN 013559775 ·
01-355-9775 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 33714 · A300-250-51/109
4730-01-355-9775 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Reducer,tube — FSC 4730
Flange Shape: HEXAGON CENTER BULKHEAD
Nominal Width Across Flats: 0.687 INCHES CENTER BULKHEAD IN
Connection Style: PLAIN (TUBE) SECOND END
Connection Style: PLAIN (PIPE) FIRST END
Nominal Overall Length: 1.062 INCHES IN
Connection Type: THREADED INTERNAL PIPE FIRST END
Connection Type: THREADED EXTERNAL TUBE SECOND END
Identification
NSN: 4730-01-355-9775
NIIN: 013559775
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: A300-250-51/109
Manufacturer: Environmental Tectonics Corp
General Description
The Reducer,tube, cataloged under National Stock Number 4730-01-355-9775, 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 Environmental Tectonics Corp. Government technical data includes 10 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 4730-01-355-9775?
NSN 4730-01-355-9775 is a Reducer,tube, manufactured by Environmental Tectonics Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-355-9775?
NSN 4730-01-355-9775 has 1 manufacturer part number on file: A300-250-51/109 (Environmental Tectonics Corp).
What are the specifications of A300-250-51/109?
Key specifications for A300-250-51/109: Flange Shape: HEXAGON CENTER BULKHEAD; Nominal Width Across Flats: 0.687 INCHES CENTER BULKHEAD IN; Connection Style: PLAIN (TUBE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-355-9775 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.