4820-01-302-2917 VALVE,VACUUM BREAKING Index 4720-01-302-2919 HOSE,METALLIC

National Stock Number:
4730-01-302-2918

Federal Supply Class:
4730

National Item Identification Number:
013022918

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:
AN893-121J88044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
AS5172J0610L0U583SAE INTERNATIONAL
SAE-AS48750U583SAE INTERNATIONAL
AS5172J0610L81343SOCIETY OF AUTOMOTIVE ENGINEERS INC


Techincal Specification:
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEGASKET SEAL (BOSS) FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 304 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 304 OVERALL
NOMINAL OVERALL LENGTH1.21875 INCHES
NOMINAL THREAD SIZE0.875 INCHES SECOND END
NOMINAL THREAD SIZE0.562 INCHES FIRST END
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.500 INCHES FIRST END
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.500 INCHES SECOND END
REDUCER TYPECONCENTRIC
SPECIFICATION/STANDARD DATA81343-AS5172 NON-GOVERNMENT STANDARD GOVERNMENT SPECIFICATION
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416, TYPE II, CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD CLASS3A SECOND END
THREAD CLASS3B FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) SECOND END


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