National Item Identification Number

01-243-9437

National Stock Number

Item Name

WASHER,SHOULDERED AND RECESSED

Federal Supply Class

5310

Referenced on: http://combatengineervehicle.tpub.com//TM-5-2350-262-24P/css/TM-5-2350-262-24P_594.htm
Referenced on: http://combatengineervehicle.tpub.com//TM-5-2350-262-24P/css/TM-5-2350-262-24P_668.htm

Description

A washer, round in shape, having a centrally located hole. One bearing surface is flat, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. Either or both of the bearing surfaces must be broken by a counterbore, countersink, or similar shaped recess. 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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97403

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CECOM LR CENTER
OPNS CENTER SITCO USASA MDW
10115 GRIDLEY RD SUITE 228
FORT BELVOIR
VA
22060

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NSN (National Stock Number) 5310-01-243-9437, 5310012439437 NIIN (National Identification Number) 01-243-9437, 012439437

Part Numbers (Reference Numbers)

13211E8712

Required Categories

MATERIAL
MATERIAL DOCUMENT AND CLASSIFICATION
HARDNESS RATING
HOLE DIAMETER;

Required Description

STEEL COMP 4140 OR
STEEL COMP 4142 OR
STEEL COMP 8640 OVERALL
ASTM A322 ASSN