National Item Identification Number
01-315-8978
013158978
4730-01-315-8978
4730013158978
National Stock Number
Item Name
REDUCER,BOSS
Federal Supply Class
4730
Description
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).
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
MS21915J8-4
Required Categories
MATERIAL
CONNECTION TYPE
CONNECTION STYLE
THREAD SERIES DESIGNATOR
NOMINAL T
Required Description
STEEL COMP 304 OVERALL
THREADED INTERNAL BOSS 1ST END
THREADED EXTERNAL BOSS 2