National Item Identification Number
01-508-0126
National Stock Number
Item Name
WASHER,CONCAVE
Federal Supply Class
5310
Description
A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also WASHER (1), CONVEX. Excludes WASHER (1), RECESSED and BEARING, WASHER, THRUST.
Commercial and Government Entity Code (Supplier Data)
53711
31442
NORTHROP GRUMMAN SYSTEMS CORPORATION
ELECTRONIC SYSTEMS DIV
895 OCEANIC DR
ANNAPOLIS
MD
21401
410-260-5330
53711
Reference Numbers (Part Numbers)
6391389
6391389-1
6391389-1
Required Categories
MATERIAL
STYLE DESIGNATOR
HOLE DIAMETER
RADIUS
OUTSIDE DIAMETER
MATERIAL TH
Required Description
STEEL COMP A2 OVERALL
6 CONCAVE
3.120 INCHES NOMINAL
6.750 INCHES NOMINAL
4.