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Worldwide distributor of NSN parts and consumables located in the USA.

Boss Reducer

Model / MPN: AS5172-0405L | NSN: 4730-00-277-7101
ITAR Registered seal

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).

Product Details
NATO Stock Number
4730-00-277-7101
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a 2nd end
Thread Class
3b 1st end
Reducer Type
Concentric
Connection Style
External seat for gasket seal (boss) 2nd end
Connection Style
Gasket seal (boss) 1st end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded internal boss 1st end
Thread Size
0.438 inches 1st end
Thread Size
0.500 inches 2nd end
Nominallength
1.109 inches
Material
Steel comp 1137 or steel comp 1141
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 1, class 2 federal specification single treatment response
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end

Pricing and Availability

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AS5172-0405L Cross Reference
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