NSN 4730-01-649-3593 · NIIN 016493593 · Part number SS318-4
Air-Way Manufacturing Company · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 22031
Government record, cited
NSN 4730-01-649-3593 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-649-3593. Manufacturer of record part number: SS318-4.
Also searched as4730-01-649-3593 ·
4730016493593 ·
NIIN 016493593 ·
01-649-3593 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 22031 · SS318-4
4730-01-649-3593 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Nut,tube Coupling — FSC 4730
Thread Series: UNF
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.438 INCHES IN
Thread Class: 2B
Thread Quantity Per Inch: 20
Material: STEEL CORROSION RESISTING OVERALL
Nominal Tube Outside Diameter: 0.250 INCHES IN
Identification
NSN: 4730-01-649-3593
NIIN: 016493593
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: SS318-4
Manufacturer: Air-Way Manufacturing Company
General Description
The Nut,tube Coupling, cataloged under National Stock Number 4730-01-649-3593, 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 Air-Way Manufacturing Company. Government technical data includes 7 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 4730-01-649-3593?
NSN 4730-01-649-3593 is a Nut,tube Coupling, manufactured by Air-Way Manufacturing Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-649-3593?
NSN 4730-01-649-3593 has 1 manufacturer part number on file: SS318-4 (Air-Way Manufacturing Company).
What are the specifications of SS318-4?
Key specifications for SS318-4: Thread Series: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.438 INCHES IN; Part Name Assigned by Controlling Agency: TUBE NUT. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-649-3593 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.