Part Number: SM-B-169019

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CONDITION:
NS
US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR80063
OUTSIDE DIAMETER1.772 INCHES MINIMUM AND 1.775 INCHES MAXIMUM
MATERIALALUMINUM ALLOY 5052
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8,H34 FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENTANODIZE
A circular-shaped item designed to maintain predetermined distance between assembled parts and/or for distributing pressure or preventing endwise movement between member parts. It has a solid cross-section and two flat parallel bearing surfaces. The distance between the bearing surfaces perpendicular to the axis of the centrally located hole shall not exceed 25 percent of the outside diameter. The diameter of the centrally located hole must exceed 75 percent of the outside diameter. Excludes laminated items. For items manufactured from impregnated graphite or lubricated nonmetallic materials, excluding felt or plastics, see GASKET. For items manufactured from lubricated plastics, see BEARING, WASHER, THRUST. For items manufactured from lubricated felt, see FELT, MECHANICAL, PREFORMED. Excludes DISK, VALVE; INSULATOR WASHER; and SHIM. See also SPACER, PLATE and SPACER, SLEEVE.