NSN 4730-01-646-2389 · NIIN 016462389 · Part number 6V-3521
Caterpillar Inc Div Caterpillar Defense · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 11083
Government record, cited
NSN 4730-01-646-2389 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-646-2389. Manufacturer of record part number: 6V-3521.
Also searched as4730-01-646-2389 ·
4730016462389 ·
NIIN 016462389 ·
01-646-2389 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 11083 · 6V-3521
Nearby stock numbers← 4730-01-646-2386 Adapter, Straight, Tube to Hose
·
4730-01-646-2404 Tee, Tube →
4730-01-646-2389 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Adapter,straight,tube to Hose — FSC 4730
Connection Style: FLARED (TUBE) FIRST END
Connection Type: THREADED EXTERNAL TUBE FIRST END
Connection Type: THREADED INTERNAL TUBE SECOND END
Nominal Thread Size: 0.4375 INCHES FIRST END IN
Nominal Thread Size: 0.1250 INCHES SECOND END IN
Seat Angle: 37.0 DEGREES FIRST END
Thread Quantity Per Inch: 28 SECOND END
Identification
NSN: 4730-01-646-2389
NIIN: 016462389
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 6V-3521
Manufacturer: Caterpillar Inc Div Caterpillar Defense
General Description
The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-01-646-2389, 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 Caterpillar Inc Div Caterpillar Defense. 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 4730-01-646-2389?
NSN 4730-01-646-2389 is a Adapter,straight,tube to Hose, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-646-2389?
NSN 4730-01-646-2389 has 1 manufacturer part number on file: 6V-3521 (Caterpillar Inc Div Caterpillar Defense).
What are the specifications of 6V-3521?
Key specifications for 6V-3521: Connection Style: FLARED (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Connection Type: THREADED INTERNAL TUBE SECOND END; Nominal Thread Size: 0.4375 INCHES FIRST END IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-646-2389 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.