NSN 4730-01-626-6641 · NIIN 016266641 · Part number 4MJ-4MB
Royal Brass, Inc. Dba Royal Brass & Hose · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 3T557
Government record, cited
NSN 4730-01-626-6641 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-626-6641. Manufacturer of record part number: 4MJ-4MB.
Nearby stock numbers← 4730-01-626-6640 Adapter, Straight, Pipe to Tube
·
4730-01-626-6642 Adapter, Straight, Pipe to Tube →
4730-01-626-6641 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Adapter,straight,pipe to Tube — FSC 4730
Nominal Length: 1.25 INCHES ALL ENDS IN
Connection Type: THREADED EXTERNAL BOSS SECOND END
Connection Type: THREADED EXTERNAL PIPE FIRST END
Nominal Outside Diameter: 0.4375 INCHES FIRST END IN
Nominal Outside Diameter: 0.4375 INCHES SECOND END IN
Media for Which Designed: HYDRAULIC FLUID SINGLE RESPONSE
Thread Quantity Per Inch: 20 ALL ENDS
Identification
NSN: 4730-01-626-6641
NIIN: 016266641
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 4MJ-4MB
Manufacturer: Royal Brass, Inc. Dba Royal Brass & Hose
General Description
The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-01-626-6641, 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 Royal Brass, Inc. Dba Royal Brass & Hose. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 4730-01-626-6641?
NSN 4730-01-626-6641 is a Adapter,straight,pipe to Tube, manufactured by Royal Brass, Inc. Dba Royal Brass & Hose, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-626-6641?
NSN 4730-01-626-6641 has 4 manufacturer part numbers on file: UHC1291 (Jige International), 4MJ-4MB (Royal Brass, Inc. Dba Royal Brass & Hose), HC1291 (Miller Industries Towing Equipment Inc), Y00015011 (Soframe).
What are the specifications of 4MJ-4MB?
Key specifications for 4MJ-4MB: Nominal Length: 1.25 INCHES ALL ENDS IN; Connection Type: THREADED EXTERNAL BOSS SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END; Nominal Outside Diameter: 0.4375 INCHES FIRST END IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-626-6641 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.