5306-01-490-6995 BOLT,MACHINE Index 2815-01-490-6997 PUSH ROD,ENGINE POPPET VALVE

National Stock Number:
4730-01-490-6996

Federal Supply Class:
4730

National Item Identification Number:
014906996

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:
78099673030HAMILTON SUNDSTRAND CORPORATION
780996-173030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL BOSS 2ND END
CONNECTION TYPETHREADED INTERNAL BOSS 1ST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END
CONNECTION STYLEGASKET SEAL (BOSS) 1ST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 316 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 316 OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL OVERALL LENGTH1.21875 INCHES
NOMINAL THREAD SIZE0.5625 INCHES 1ST END
NOMINAL THREAD SIZE0.875 INCHES 2ND END
SPECIAL FEATURESAN893-121K HAS BEEN MODIFIED TO ADD O-RING GROOVE TO INTERNAL THREADED END, AND 45 DEGREE INTERNAL SURFACE IN EXTERNAL THREADED END
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.500 INCHES ALL ENDS
REDUCER TYPECONCENTRIC
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE II, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A 2ND END
THREAD CLASS3B 1ST END
THREAD SERIES DESIGNATORUNJF 1ST END
THREAD SERIES DESIGNATORUNJF 2ND END


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