NSN 4730-01-644-0775 · NIIN 016440775 · Part number KT3517-2
Marathonnorco Aerospace, Inc. · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 08844
Government record, cited
NSN 4730-01-644-0775 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-644-0775. Manufacturer of record part number: KT3517-2.
Also searched as4730-01-644-0775 ·
4730016440775 ·
NIIN 016440775 ·
01-644-0775 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 08844 · KT3517-2
4730-01-644-0775 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Couplex Assembly Ki — FSC 4730
1 manufacturer part number on file
Manufacturer of record: Marathonnorco Aerospace, Inc.
Identification
NSN: 4730-01-644-0775
NIIN: 016440775
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: KT3517-2
Manufacturer: Marathonnorco Aerospace, Inc.
General Description
The Couplex Assembly Ki, cataloged under National Stock Number 4730-01-644-0775, 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 Marathonnorco Aerospace, Inc.. 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 4730-01-644-0775?
NSN 4730-01-644-0775 is a Couplex Assembly Ki, manufactured by Marathonnorco Aerospace, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-644-0775?
NSN 4730-01-644-0775 has 1 manufacturer part number on file: KT3517-2 (Marathonnorco Aerospace, Inc.).
Is NSN 4730-01-644-0775 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.
What is the DEMIL code for NSN 4730-01-644-0775?
NSN 4730-01-644-0775 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.