4810-00-765-1938 DISK,VALVE Index 5305-00-765-1940 SCREW,ADJUSTING,VALVE TAPPET

National Stock Number:
5365-00-765-1939

Federal Supply Class:
5365

National Item Identification Number:
007651939

Description:
SPACER,RING

Detail:
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.


Manufacturer Information:
0N03937898230NATIONAL SECURITY AGENCY


Techincal Specification:
INSIDE DIAMETER2.281 INCHES NOMINAL
OUTSIDE DIAMETER2.656 INCHES NOMINAL
OVERALL THICKNESS0.090 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8,H32 FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 5052


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