National Item Identification Number

00-289-2770
002892770
4730-00-289-2770
4730002892770

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)

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81343

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81343

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81343

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Reference Numbers (Part Numbers)

AS18280
AS21916
MILF5509A
MS21916D6-3
MS21916D6-3

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT

Required Description

ALUMINUM ALLOY 2024 OR
ALUMINUM ALLOY 2014 OVERALL
QQ-A-225/6,T6 OR T851 FED S