PartsTable TECHNICAL DATA SHEET
NSN 4730-01-531-4458Government record, cited

Coupling Half, Quick Disconnect4730-01-531-4458

NSN 4730-01-531-4458 · NIIN 015314458 · Part number DC223
Dixon Valve & Coupling Co · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 0JPJ8
Government record, cited
NSN 4730-01-531-4458 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-531-4458. Manufacturer of record part number: DC223.
Also searched as  4730-01-531-4458 · 4730015314458 · NIIN 015314458 · 01-531-4458 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 0JPJ8 · DC223 · 1600134-56 · 1600134
Nearby stock numbers  ·
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Nominal Pipe Size Accommodated: 0.375 INCHES FIRST FLUID END CONNECTION IN
  • Nominal Pipe Size Accommodated: 0.375 INCHES ALL ENDS IN
  • Operating Pressure: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Material: COPPER ALLOY OVERALL
  • 1 manufacturer part number on file
  • Manufacturer of record: Dixon Valve & Coupling Co
Identification
  • NSN: 4730-01-531-4458
  • NIIN: 015314458
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: DC223
  • Manufacturer: Dixon Valve & Coupling Co
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-531-4458, 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 Co. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-531-4458
Primary Part NumberDC223
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerDixon Valve & Coupling Co
StatusACTIVE
Nominal Pipe Size Accommodated0.375 INCHES FIRST FLUID END CONNECTION IN
Nominal Pipe Size Accommodated0.375 INCHES ALL ENDS IN
Operating Pressure100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-531-44681600134-36 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Facilities Engineering Command
4720-01-531-44691600134-38 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Facilities Engineering Command
4720-01-531-49191600134-35 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Facilities Engineering Command
4730-01-531-4927DC103 POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
Possible match (shared part number)Dixon Valve & Coupling Co
4720-01-531-49301600134-37 POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Naval Facilities Engineering Command
5420-01-531-50941600134-5 POSSIBLE MATCH
PIN,PANEL,BRIDGE
Possible match (shared part number)Naval Facilities Engineering Command
2040-01-531-51011600134-2 POSSIBLE MATCH
LATCH HOUSING ASSEMBLY
Possible match (shared part number)Appleton Marine Inc
4730-01-531-5113CMF38 POSSIBLE MATCH
PNEUMATIC MUFFLER,EXHAUST-INTAKE
Possible match (shared part number)Dixon Valve & Coupling Co
4820-01-531-7298C73J-3AK-AD3-RMG-QDN POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Norgren C a Co
9330-01-656-05941600134-60 POSSIBLE MATCH
MOLDING,PLASTIC
Possible match (shared part number)Naval Facilities Engineering Command
Cross-Reference Index
Part NumberManufacturer
DC223 PRIMARY Dixon Valve & Coupling Co (USA)
Reference documents
ReferenceMeaning
1600134-56 5/2 Secondary reference
U.S. Government activity
1600134 D/9 Drawing number reference only
U.S. Government activity
Related Parts
4720-01-531-4468POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
1600134-36
4720-01-531-4469POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
1600134-38
4720-01-531-4919POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
1600134-35
4730-01-531-4927POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
DC103
4720-01-531-4930POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
1600134-37
5420-01-531-5094POSSIBLE MATCH
PIN,PANEL,BRIDGE
1600134-5
2040-01-531-5101POSSIBLE MATCH
LATCH HOUSING ASSEMBLY
1600134-2
4730-01-531-5113POSSIBLE MATCH
PNEUMATIC MUFFLER,EXHAUST-INTAKE
CMF38
4820-01-531-7298POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
C73J-3AK-AD3-RMG-QDN
9330-01-656-0594POSSIBLE MATCH
MOLDING,PLASTIC
1600134-60

Frequently Asked Questions

What is NSN 4730-01-531-4458?

NSN 4730-01-531-4458 is a Coupling Half,quick Disconnect, manufactured by Dixon Valve & Coupling Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-531-4458?

NSN 4730-01-531-4458 has 1 manufacturer part number on file: DC223 (Dixon Valve & Coupling Co).

What NSN replaces 4730-01-531-4458?

10 possible matches (shared part number, not a government interchangeability claim): 4720-01-531-4468, 4720-01-531-4469, 4720-01-531-4919. Verify interchangeability with system specifications before substitution.

What are the specifications of DC223?

Key specifications for DC223: Nominal Pipe Size Accommodated: 0.375 INCHES FIRST FLUID END CONNECTION IN; Nominal Pipe Size Accommodated: 0.375 INCHES ALL ENDS IN; Operating Pressure: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; End Item Identification: FLEXOR RECEIVER ASSY. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-531-4458 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.
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