4730-01-288-3879 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Reducer,tube — FSC 4730
Nominal Overall Length: 1.750 INCHES IN
Connection Type: THREADED EXTERNAL TUBE ALL ENDS
Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated: 0.750 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated: 1.250 INCHES FIRST END IN
Nominal Thread Size: 1.625 INCHES ALL ENDS IN
Nominal Thread Size: 1.062 INCHES SECOND END IN
Identification
NSN: 4730-01-288-3879
NIIN: 012883879
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Reducer,tube, cataloged under National Stock Number 4730-01-288-3879, 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9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated
0.750 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated
1.250 INCHES FIRST END IN
Nominal Thread Size
1.625 INCHES ALL ENDS IN
Nominal Thread Size
1.062 INCHES SECOND END IN
Material
COPPER ALLOY OVERALL
Thread Series Designator
UN ALL ENDS
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
173683
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 4730-01-288-3879?
NSN 4730-01-288-3879 is a Reducer,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-01-288-3879?
Key specifications for 4730-01-288-3879: Nominal Overall Length: 1.750 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES SECOND END IN. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-288-3879 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.