National Item Identification Number
00-209-2907
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)
51918
SQUARE D CO
AUTOMATION AND CONTROL BUSINESS
27446
RALEIGH
NC
27611
919-266-3671
56365
SQUARE D COMPANY
DBA FOREIGN PARENT IS SCHNEIDER
1415 S ROSELLE RD
PALATINE
IL
60067
410-847-1306
Reference Numbers (Part Numbers)
306D1X3
306D1X3
Required Categories
MATERIAL
SURFACE TREATMENT
STYLE DESIGNATOR
HOLE DIAMETER
OUTSIDE DIAMETER;
Required Description
STEEL OVERALL
CADMIUM OVERALL
16 RECESS
0.266 INCHES NOMINAL
0.778 INCHES MI