Product Details | TUBE REDUCER

4730-01-258-7486 A straight tube fitting having a different size connection on each end. It is designed to join two tubes of different sizes. Excludes BUSHING (as modified).

Part Alternates: AS4301K0604, KC106C64, KC106C6-4, KC106K64, KC106K6-4, 4730-01-258-7486, 01-258-7486, 4730012587486, 012587486

Pipe, Tubing, Hose, and Fittings | Hose, Pipe, Tube, Lubrication, and Railing Fittings

Supply Group (FSG) NSN Assign. NIIN
47 08 JUL 1987 01-258-7486

Drawings & Photos | NSN 4730-01-258-7486


Demand History | NSN 4730-01-258-7486

Part Number Request Date QTY Origin
AS4301K0604 2024-02-37 20 United States
AS4301K0604 2023-03-83 1 United States
AS4301K0604 2016-10-295 12 United States

Cross Reference | NSN 4730-01-258-7486

Part Number Cage Code Manufacturer
AS4301K0604 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
KC106C6-4 22264 JOHN F KENNEDY SPACE CENTER DBA NASA
KC106K6-4 22264 JOHN F KENNEDY SPACE CENTER DBA NASA

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Technical Data | NSN 4730-01-258-7486

Characteristic Specifications
MATERIAL STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
CONNECTION TYPE THREADED INTERNAL TUBE 1ST END THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLE B3 SWIVEL NUT, FLARE 1ST END B64 FLARED 2ND END
SEAT ANGLE 37.0 DEGREES 1ST END 37.0 DEGREES 2ND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.375 INCHES 1ST END 0.250 INCHES 2ND END
THREAD SERIES DESIGNATOR UNF 1ST END UNF 2ND END
NOMINAL THREAD SIZE 0.172 INCHES 1ST END 0.438 INCHES 2ND END
THREAD CLASS 3A 1ST END 3A 2ND END
NOMINAL OVERALL LENGTH 0.969 INCHES
REDUCER TYPE CONCENTRIC
SPECIAL FEATURES KC106C6-4; MACHINED GROOVE IN FLARED ENDS TO ACCOMMODATE SEAL RINGS PER KC103

Restrictions/Controls & Freight Information | NSN 4730-01-258-7486

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information