Product Details | TUBE REDUCER

4730-01-088-4099 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: AS1368K0604, KC125C64, KC125C6-4, KC125K64, KC125K6-4, 4730-01-088-4099, 01-088-4099, 4730010884099, 010884099

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

Supply Group (FSG) NSN Assign. NIIN
47 12 JAN 1980 01-088-4099

Demand History | NSN 4730-01-088-4099

Part Number Request Date QTY Origin
4730-01-088-4099 2025-03-72 2 DIBBS
4730-01-088-4099 2025-03-70 1 DIBBS
4730-01-088-4099 2024-08-227 1 DIBBS

Cross Reference | NSN 4730-01-088-4099

Part Number Cage Code Manufacturer
AS1368K0604 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
KC125C6-4 22264 JOHN F KENNEDY SPACE CENTER DBA NASA
KC125K6-4 22264 JOHN F KENNEDY SPACE CENTER DBA NASA

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Technical Data | NSN 4730-01-088-4099

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763 TYPE 316;COND A FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLE B64 FLARED 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 0.562 INCHES 1ST END 0.438 INCHES 2ND END
THREAD QUANTITY PER INCH 18 1ST END 20 2ND END
THREAD CLASS 3A 1ST END 3A 2ND END
NOMINAL OVERALL LENGTH 1.377 INCHES
REDUCER TYPE CONCENTRIC
SPECIAL FEATURES MACHINED GROOVE IN FLARED ENDS TO ACCOMMODATE SEAL RING PER KC103

Restrictions/Controls & Freight Information | NSN 4730-01-088-4099

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