National Item Identification Number
01-198-9688
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
53711
43689
Reference Numbers (Part Numbers)
501-4458628 PIECE 61
501-6603008PC52
501-6722112PC52
6603008PC52
7255-235 PI
Required Categories
SPECIAL FEATURES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
CRITICALITY
Required Description
BACK-UP WASHER
THIS ITEM SHALL CONFORM TO THE DIMENSIONS FOR A 5/16 INCH OUTSID