National Item Identification Number
01-343-1771
013431771
4730-01-343-1771
4730013431771
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)
Reference Numbers (Part Numbers)
MS51860-53Z
Required Categories
THREAD SERIES
NOMINAL THREAD SIZE
THREAD QUANTITY PER INCH
THREAD CLASS
THRE
Required Description
UNF
0.438 INCHES
20
2B
RIGHT-HAND
STEEL OVERALL
ZINC OVERALL
A391 TUBE FI