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4730-01-668-3978

Boss Elbow

4730016683978 016683978 AS4220P04

A fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. The boss connections have external and/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. It may have side or heel inlet(s). It is designed to join two bosses or boss fittings on items such as tanks, housings, valve fittings, and the like. Excludes ELBOW, TUBE. View more Boss Elbow

Managed by United States

NSN Created on 21 Nov 2017

Data Last Changed
May 2023

NATO Update Count
4

NATO Data Quality

4730-01-668-3978 ELBOW,BOSS 4730016683978 016683978 1/1 — NSN 4730-01-668-3978 (Generic Image) 1/1

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4730-01-668-3978 RQST NE

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4730-01-668-3978 RQST NE

Restrictions 4730-01-668-3978

4730-01-668-3978 is a Boss Elbow that has not been reviewed for criticality in aviation or nuclear applications by an approved engineering authority. Demilitarization of this item has been confirmed and is not currently subject to changes. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.