National Item Identification Number
01-278-2012
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)
30003
Reference Numbers (Part Numbers)
1698AS208
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
ALUMINUM ALLOY 2024 OVERALL
ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE OVERALL