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

Boss Reducer

Model / MPN: 28863 | NSN: 4730-00-361-2403
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
4730-00-361-2403
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a 2nd end
Thread Class
3a 1st end
Reducer Type
Concentric
Connection Style
External seat for gasket seal (boss) 1st end
Connection Style
External seat for gasket seal (boss) 2nd end
Connection Type
Threaded external boss 1st end
Connection Type
Threaded external boss 2nd end
Thread Size
0.750 inches 2nd end
Reduced Passage Inside Diameter
0.251 inches 2nd end
Nominallength
1.590 inches
Material
Steel
Surface Treatment
Anodize inside
Surface Treatment
Anodize outside
Surface Treatment Specification
Mil-a-8625, ty2, cl 1 military specification single treatment response inside
Surface Treatment Specification
Mil-a-8625, ty2, cl 1 military specification single treatment response outside
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end
28863 Series Parts

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28863 Cross Reference