NSN 4730-01-677-5440 · NIIN 016775440 · Part number AL4003457
General Dynamics Ordnance and Tactical Systems, Inc. · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 0F875
Government record, cited
NSN 4730-01-677-5440 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-677-5440. Manufacturer of record part number: AL4003457.
Also searched as4730-01-677-5440 ·
4730016775440 ·
NIIN 016775440 ·
01-677-5440 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 0F875 · AL4003457 · 5315K470
4730-01-677-5440 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling Half,quick Disconnect — FSC 4730
Connection Type: THREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
Connection Type: AIR CHUCK QUICK DISCONNECT SECOND FLUID END CONNECTION
Style Designator: MALE COUPLING HALF
Operating Pressure: 6500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Quick Disconnect Nominal Size: 0.4375 INCHES SECOND FLUID END CONNECTION IN
Nominal Thread Size: 0.25 INCHES FIRST FLUID END CONNECTION IN
Maximum Operating Temp: 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
Identification
NSN: 4730-01-677-5440
NIIN: 016775440
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: AL4003457
Manufacturer: General Dynamics Ordnance and Tactical Systems, Inc.
General Description
The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-677-5440, 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 General Dynamics Ordnance and Tactical Systems, Inc.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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 4730-01-677-5440?
NSN 4730-01-677-5440 is a Coupling Half,quick Disconnect, manufactured by General Dynamics Ordnance and Tactical Systems, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-677-5440?
NSN 4730-01-677-5440 has 3 manufacturer part numbers on file: AL4003457 (General Dynamics Ordnance and Tactical Systems, Inc.), 5315K470 (Mcmaster-Carr Supply Co), AL4003457 (Flyer Defense, Llc).
What are the specifications of AL4003457?
Key specifications for AL4003457: Connection Type: THREADED EXTERNAL HOSE FIRST FLUID END CONNECTION; Connection Type: AIR CHUCK QUICK DISCONNECT SECOND FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Overall Length: 2.03 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-677-5440 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.