NSN 4730-01-663-3301 · NIIN 016633301 · Part number 1173-24-20
Main Manufacturing Products Inc · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 7X443
Government record, cited
NSN 4730-01-663-3301 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-663-3301. Manufacturer of record part number: 1173-24-20.
Also searched as4730-01-663-3301 ·
4730016633301 ·
NIIN 016633301 ·
01-663-3301 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 7X443 · 1173-24-20
4730-01-663-3301 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Reducer,boss — FSC 4730
Flange Shape: ROUND FIRST END
Nominal Overall Length: 3.750 INCHES IN
Connection Type: THREADED INTERNAL BOSS FIRST END
Nominal Thread Size: 1.625 INCHES FIRST END IN
Nominal Outside Diameter: 0.500 INCHES SECOND END IN
Thread Quantity Per Inch: 12 FIRST END
Material: STEEL OVERALL
Identification
NSN: 4730-01-663-3301
NIIN: 016633301
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 1173-24-20
Manufacturer: Main Manufacturing Products Inc
General Description
The Reducer,boss, cataloged under National Stock Number 4730-01-663-3301, 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 Main Manufacturing Products Inc. Government technical data includes 8 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 4730-01-663-3301?
NSN 4730-01-663-3301 is a Reducer,boss, manufactured by Main Manufacturing Products Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-663-3301?
NSN 4730-01-663-3301 has 1 manufacturer part number on file: 1173-24-20 (Main Manufacturing Products Inc).
What are the specifications of 1173-24-20?
Key specifications for 1173-24-20: Flange Shape: ROUND FIRST END; Nominal Overall Length: 3.750 INCHES IN; Connection Type: THREADED INTERNAL BOSS FIRST END; Nominal Thread Size: 1.625 INCHES FIRST END IN. 8 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-663-3301 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.