Product Details | BOSS REDUCER

4730-00-175-6253 A straight fitting having a boss connection of a different size at each end. Both connections have external or internal machine threads (straight threads other than pipe or hose series) and are designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. Excludes BUSHING (as modified).

Part Alternates: 4730-00-175-6253, 00-175-6253, 4730001756253, 001756253

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

Supply Group (FSG) NSN Assign. NIIN
47 00-175-6253

Cross Reference | NSN 4730-00-175-6253

Part Number Cage Code Manufacturer
AS18280 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
AS21915 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS21915-16-6 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS21915-16-6 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS21915V16-6P 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC

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Technical Data | NSN 4730-00-175-6253

Characteristic Specifications
MATERIAL STEEL OVERALL
SURFACE TREATMENT CADMIUM OVERALL
CONNECTION TYPE THREADED INTERNAL BOSS 1ST END THREADED EXTERNAL BOSS 2ND END
CONNECTION STYLE B9 GASKET SEAL 1ST END B71A EXTERNAL SEAT FOR GASKET SEAL 2ND END
THREAD SERIES DESIGNATOR UNJ 1ST END UNJF 2ND END
NOMINAL THREAD SIZE 1.312 INCHES 1ST END 0.562 INCHES 2ND END
THREAD QUANTITY PER INCH 12 1ST END
THREAD CLASS 3B 1ST END 3A 2ND END
NOMINAL OVERALL LENGTH 1.844 INCHES
REDUCER TYPE CONCENTRIC
SPECIFICATION/STANDARD DATA 96906-MS21915 GOVERNMENT STANDARD

Restrictions/Controls & Freight Information | NSN 4730-00-175-6253

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
Category Code Description
No Freight Information