National Item Identification Number

00-450-4158

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)

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16603

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CONTROL FLOW INC
DBA WESTECH HEAVY MACHINERY DIV DIV
1220 E 29TH ST
SIGNAL HILL
CA
90755
562-528-3303

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3X894

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Reference Numbers (Part Numbers)

B109465
B109465
B109465

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
STYLE DESIGNATOR
HOLE DIAMETER;

Required Description

COPPER ALLOY OVERALL
ASTM B143-2A COMP M ASSN STD SINGLE MATERIAL RESPONSE OVER