4730-00-720-1804 CROSS,TUBE TO BOSS Index 4140-00-720-1809 FAN,CENTRIFUGAL

National Stock Number:
4730-00-720-1807

Federal Supply Class:
4730

National Item Identification Number:
007201807

Description:
REDUCER,BOSS

Detail:
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).


Manufacturer Information:
AN893-151J88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS5172J0810L0U583SAE INTERNATIONAL
AS5172J0810L81343SOCIETY OF AUTOMOTIVE ENGINEERS INC
MS24397J15196906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SAE-AS48750U583SAE INTERNATIONAL


Techincal Specification:
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END
CONNECTION STYLEGASKET SEAL (BOSS) 1ST END
CONNECTION TYPETHREADED EXTERNAL BOSS 2ND END
CONNECTION TYPETHREADED INTERNAL BOSS 1ST END
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 304 OVERALL
NOMINAL OVERALL LENGTH1.375 INCHES
NOMINAL THREAD SIZE0.875 INCHES 2ND END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
REDUCER TYPECONCENTRIC
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
SURFACE TREATMENTPASSIVATE INSIDE
SURFACE TREATMENTPASSIVATE OUTSIDE
THREAD CLASS3A 2ND END
THREAD CLASS3A 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
THREAD SERIES DESIGNATORUNF 2ND END


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