National Item Identification Number

01-372-5766

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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05825

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ORDNANCE TECHNOLOGY SERVICES INC.
ELECTRONIC SYSTEMS DIV
8613 EAST AVENUE
MENTOR
OH
44060
440-205-0677

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53711

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Reference Numbers (Part Numbers)

B48475
6509915

Required Categories

MATERIAL
SURFACE TREATMENT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
STYL

Required Description

STEEL COMP 1010 OR
STEEL COMP 1011 OR
STEEL COMP 1012 OR
STEEL COMP 1013 OR;