NSN 4730-00-640-0866, 4730006400866
Cancelled -> Replaced by 4730003192835

Federal Supply Classification: FSC 4730 - Hose, Pipe, Tube, Lubrication, and Railing Fittings
National Item Identification Number: NIIN 006400866
Codification Country: United States
Item Name Code: INC 08505
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 4730-00-640-0866

National Stock Number (NSN) 4730-00-640-0866, or NIIN 006400866, (reducer,pipe) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 08505. [A STRAIGHT PIPE FITTING HAVING A DIFFERENT SIZE CONNECTION ON EACH END. IT IS DESIGNED TO JOIN TWO PIPES OF DIFFERENT SIZES OR TWO PIPE FITTINGS OF DIFFERENT SIZES. EXCLUDES:BUSHING (AS MODIFIED).]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730006400866 contains an unknown precious metal.

This information was last updated on Aug 01, 2025.

Technical Characteristics

NOMINAL PIPE SIZE ACCOMMODATED: (AAAR) 0.500 INCHES 2ND END
CONNECTION STYLE: (AHNC) PLAIN (PIPE) 2ND END
NOMINAL THREAD SIZE: (CQJX) 0.500 INCHES 2ND END
NOMINAL THREAD SIZE: (CQJX) 1.000 INCHES 1ST END
SURFACE TREATMENT: (SFTT) ZINC OUTSIDE
NOMINAL OVERALL LENGTH: (CWFR) 1.500 INCHES
REDUCER TYPE: (ACSP) CONCENTRIC
THREAD SERIES DESIGNATOR: (THSD) NPT 1ST END
NOMINAL PIPE SIZE ACCOMMODATED: (AAAR) 1.000 INCHES 1ST END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE INSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OUTSIDE
CONNECTION STYLE: (AHNC) PLAIN (PIPE) 1ST END
CONNECTION TYPE: (AWLS) THREADED INTERNAL PIPE 2ND END
CONNECTION TYPE: (AWLS) THREADED INTERNAL PIPE 1ST END
NONDEFINITIVE SPEC/STD DATA: (ZZZT) 2 TYPE AND 125 CLASS
MATERIAL: (MATT) IRON OVERALL
THREAD SERIES DESIGNATOR: (THSD) NPT 2ND END
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) ASTM A126-61T,CL A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT: (SFTT) ZINC INSIDE