National Item Identification Number

01-398-9966
013989966
4730-01-398-9966
4730013989966

National Stock Number

Item Name

ELBOW,BOSS

Federal Supply Class

4730

Description

A fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. The boss connections have external and/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. It may have side or heel inlet(s). It is designed to join two bosses or boss fittings on items such as tanks, housings, valve fittings, and the like. Excludes ELBOW, TUBE.

Commercial and Government Entity Code (Supplier Data)

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77445

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Reference Numbers (Part Numbers)

1B4978

Required Categories

MATERIAL
SPECIAL FEATURES
III END ITEM IDENTIFICATION

Required Description

NICKEL ALLOY OVERALL
SIX HOLES, 0.286 DIA, 0.740 RECESS (BOTH ENDS).
C17 ENGIN