National Item Identification Number

00-640-7189
006407189
4730-00-640-7189
4730006407189

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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001JK

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Reference Numbers (Part Numbers)

AS18280
AS21916
ER919D8-5
MS21916D8-5
MS21916W8-5
3110531
3110531

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
CONNECTION TY

Required Description

ALUMINUM ALLOY 2024 OVERALL
QQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OVE