4730-01-043-2019 COUPLING,TUBE Index 4720-01-043-2021 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
4730-01-043-2020

Federal Supply Class:
4730

National Item Identification Number:
010432020

Description:
ELBOW,TUBE TO BOSS

Detail:
A fitting that forms an angle of less that 180 degrees (3.141 radians) from a straight flow. One connecting end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like, to form a seal at the boss. It may have side or heel inlet(s). It is designed to connect a tube or tube fitting to a boss or boss fitting on items such as tanks, housings, valve fittings, or the like.


Manufacturer Information:
GE11H426512NORTHROP GRUMMAN SYSTEMS CORPORATION
GE11H459680B. & E. MANUFACTURING CO., INC.


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION STYLEFLARED W/ GASKET SEAT (TUBE) FIRST END
FLOW ANGLE90.0 DEGREES
LEG LENGTH0.945 INCHES NOMINAL SECOND END
LEG LENGTH0.953 INCHES NOMINAL FIRST END
MATERIALSTEEL OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL THREAD SIZE0.438 INCHES FIRST END
NOMINAL THREAD SIZE0.438 INCHES SECOND END
SEAT ANGLE37.0 DEGREES FIRST END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 1,CLASS @2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A FIRST END
THREAD CLASS3A SECOND END
THREAD SERIES DESIGNATORUNF FIRST END
THREAD SERIES DESIGNATORUNF SECOND END
THREAD QUANTITY PER INCH20 ALL ENDS


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