National Item Identification Number
01-516-8057
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)
84256
04939
04939
Reference Numbers (Part Numbers)
IT130WC4-1
76000207
76000207-001
Required Categories
MATERIAL
SURFACE TREATMENT
STYLE DESIGNATOR
HOLE DIAMETER
OUTSIDE DIAMETER;
Required Description
STEEL CORROSION RESISTING OVERALL
PASSIVATE OVERALL
15 RECESS
0.314 INCHES NO
