National Item Identification Number
01-149-0746
National Stock Number
Item Name
WASHER,RECESSED
Federal Supply Class
5310
Description
A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes WASHER, CONCAVE, RETAINER, PACKING, and thrust type washers. See also SPACER, SLEEVE; and SPACER, STEPPED.
Commercial and Government Entity Code (Supplier Data)
86887
SIGMA TEK INC
1001 INDUSTRIAL RD
AUGUSTA
KS
67010
316-775-6373
Reference Numbers (Part Numbers)
23-400-12
Required Categories
MATERIAL
STYLE DESIGNATOR
HOLE DIAMETER
RADIUS
OUTSIDE DIAMETER
RECESS DIAM
Required Description
ALUMINUM ALLOY 2024 OVERALL
38A RECESSED BOTH SIDES
0.250 INCHES NOMINAL
0.00