National Item Identification Number

01-257-2210

National Stock Number

Item Name

WASHER,SHOULDERED

Federal Supply Class

5310

Description

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use BEARING, SLEEVE; BUSHING SLEEVE; or SPACER, SLEEVE. Excludes INSULATOR, WASHER and thrust type washers.

Commercial and Government Entity Code (Supplier Data)

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98897

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Reference Numbers (Part Numbers)

4G12048-101A

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HOLE DIAMETER
OUTSIDE DIAMETER;

Required Description

STEEL COMP 4340 OVERALL
MIL-S-5000 COND E-4 MIL SPEC SINGLE MATERIAL RESPONSE O