NSN 4730-01-656-3918 · NIIN 016563918 · Part number D4S4
Dixon Valve & Coupling Company, Llc Div Dixon Fire · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 72661
Government record, cited
NSN 4730-01-656-3918 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-656-3918. Manufacturer of record part number: D4S4.
Also searched as4730-01-656-3918 ·
4730016563918 ·
NIIN 016563918 ·
01-656-3918 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 72661 · D4S4
4730-01-656-3918 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling Half,quick Disconnect — FSC 4730
Connection Style: BARBED OR SERRATED END FIRST FLUID END CONNECTION
Nominal Length: 2.530 INCHES IN
Nominal Inside Diameter Hose Accommodated: 0.500 INCHES FIRST FLUID END CONNECTION IN
Connection Type: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
Style Designator: FEMALE COUPLING HALF
Quick Disconnect Nominal Size: 0.500 INCHES ALL ENDS IN
Basic Shape Style: ROUND ALL ENDS
Identification
NSN: 4730-01-656-3918
NIIN: 016563918
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: D4S4
Manufacturer: Dixon Valve & Coupling Company, Llc Div Dixon Fire
General Description
The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-656-3918, 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 Dixon Valve & Coupling Company, Llc Div Dixon Fire. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 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 4730-01-656-3918?
NSN 4730-01-656-3918 is a Coupling Half,quick Disconnect, manufactured by Dixon Valve & Coupling Company, Llc Div Dixon Fire, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-656-3918?
NSN 4730-01-656-3918 has 2 manufacturer part numbers on file: D4S4 (Dixon Valve & Coupling Company, Llc Div Dixon Fire), D4S4 (Echelon Supply and Service, Inc.).
What are the specifications of D4S4?
Key specifications for D4S4: Connection Style: BARBED OR SERRATED END FIRST FLUID END CONNECTION; Nominal Length: 2.530 INCHES IN; Nominal Inside Diameter Hose Accommodated: 0.500 INCHES FIRST FLUID END CONNECTION IN; Connection Type: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-656-3918 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.