National Item Identification Number
01-254-5420
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)
08989
SPRINGFIELD SPRING CORP THE
311 SHAKER RD
505
EAST LONGMEADOW
MA
01028
413-525-6837
09205
Reference Numbers (Part Numbers)
240840
240840
Required Categories
MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
SURFACE TREATMENT
SURFACE TREAT
Required Description
STEEL COMP 321 OR
STEEL COMP 347 OVERALL
QQ-S-763,COND A FED SPEC ALL MATERIAL