4730-01-254-2993 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Coupling Assembly,quick Disconne — FSC 4730
Connection Style: EXTERNAL SEAT FOR GASKET SEAL FIRST FLUID END CONNECTION
Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
Style Designator: COUPLING ASSEMBLY
Nominal Thread Size: 0.4375 INCHES FIRST FLUID END CONNECTION IN
Thread Class: 3A FIRST FLUID END CONNECTION A
Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST FLUID END CONNECTION
Identification
NSN: 4730-01-254-2993
NIIN: 012542993
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Coupling Assembly,quick Disconne, cataloged under National Stock Number 4730-01-254-2993, 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 6 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 SEAT FOR GASKET SEAL FIRST FLUID END CONNECTION
Connection Type
THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION
Style Designator
COUPLING ASSEMBLY
Nominal Thread Size
0.4375 INCHES FIRST FLUID END CONNECTION IN
Thread Class
3A FIRST FLUID END CONNECTION A
Thread Series Designator
UNIFIED NATIONAL JOINT FINE (UNJF) FIRST FLUID END CONNECTION
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
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
276-0001-029
3/2Design 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 4730-01-254-2993?
NSN 4730-01-254-2993 is a Coupling Assembly,quick Disconne, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-01-254-2993?
Key specifications for 4730-01-254-2993: Connection Style: EXTERNAL SEAT FOR GASKET SEAL FIRST FLUID END CONNECTION; Connection Type: THREADED EXTERNAL BOSS FIRST FLUID END CONNECTION; Style Designator: COUPLING ASSEMBLY; Overall Length: 5.560 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-254-2993 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.
What is the DEMIL code for NSN 4730-01-254-2993?
NSN 4730-01-254-2993 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.