National Item Identification Number
01-143-7988
011437988
4730-01-143-7988
4730011437988
National Stock Number
Item Name
LOCKNUT,TUBE FITTING
Federal Supply Class
4730
Description
An item with internal machine threads designed to fit the external machine threads of a tube fitting. It has flat faces, one of which has a counterbored recess to accommodate packing, packing or sealing ring(s), gasket(s), and the like. The item, when installed, provides a method of locking and sealing the connection. See also LOCKNUT, PIPE; NUT (1), TUBE COUPLING and NUT (1), PLAIN, HEXAGON.
Commercial and Government Entity Code (Supplier Data)
81343
81343
81343
Reference Numbers (Part Numbers)
AN6289W4
AS4841
AS5179
AS5179W04
Required Categories
THREAD SERIES
NOMINAL THREAD SIZE
THREAD QUANTITY PER INCH
THREAD CLASS
THRE
Required Description
UNJF
0.438 INCHES
20
3B
RIGHT-HAND
ALUMINUM ALLOY 7075 OVERALL
QQ-A-225/9,