4720-00-922-5140 HOSE ASSEMBLY,NONMETALLIC Index 4730-00-922-5143 LOCKNUT,TUBE FITTING

National Stock Number:
4730-00-922-5141

Federal Supply Class:
4730

National Item Identification Number:
009225141

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:
MS21915-4-296906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


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 CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1137 OR STEEL COMP 1141 OVERALL
NOMINAL OVERALL LENGTH1.234 INCHES
NOMINAL THREAD SIZE0.438 INCHES FIRST END
NOMINAL THREAD SIZE0.312 INCHES SECOND END
REDUCER TYPECONCENTRIC
SPECIAL FEATURESSUPPORTS MODEL A10 GRUMMAN AIRCRAFT
SPECIFICATION/STANDARD DATA96906-MS21915 GOVERNMENT STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P- TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A SECOND END
THREAD CLASS3B FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS


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