4730-01-538-4258 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling Half,quick Disconnect — FSC 4730
Connection Style: FLARED FIRST FLUID END CONNECTION
Connection Style: PUSH (EXTERNAL) FIRST QUICK DISCONNECT END
Seat Nominal Radius: 0.238 INCHES IN
Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
Connection Type: THREADED EXTERNAL GAS FITTING FIRST FLUID END CONNECTION
Style Designator: MALE COUPLING HALF
Leg Length: 0.685 INCHES NOMINAL IN
Identification
NSN: 4730-01-538-4258
NIIN: 015384258
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-538-4258, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
Connection Type
THREADED EXTERNAL GAS FITTING FIRST FLUID END CONNECTION
Style Designator
MALE COUPLING HALF
Leg Length
0.685 INCHES NOMINAL IN
Material
STEEL CORROSION RESISTING OVERALL
Quick Disconnect Method
PUSH-PULL FIRST FLUID END CONNECTION
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
803-8214608
3/9Design control — primary reference
U.S. Government activity
No interchangeability data on file.
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 4730-01-538-4258?
NSN 4730-01-538-4258 is a Coupling Half,quick Disconnect, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-01-538-4258?
Key specifications for 4730-01-538-4258: Connection Style: FLARED FIRST FLUID END CONNECTION; Connection Style: PUSH (EXTERNAL) FIRST QUICK DISCONNECT END; Seat Nominal Radius: 0.238 INCHES IN; Connection Type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-538-4258 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.