4820-00-353-5136 DIAPHRAGM,VALVE,FLAT Index 5330-00-353-5143 GASKET

National Stock Number:
5365-00-353-5142

Federal Supply Class:
5365

National Item Identification Number:
003535142

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:
25L60TM81AIR COMPRESSOR SUPPLY, LLC
25L624047COOPER INDUSTRIES INC DBA COOPER TOOLS
25L66X081COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV
25L690120COOPER INDUSTRIES INC DENVER FACILITY-MINING AND CONSTRUCTION


Techincal Specification:
HARDNESS RATING65.0 ROCKWELL F MAXIMUM
INSIDE DIAMETER4.250 INCHES NOMINAL
OUTSIDE DIAMETER4.500 INCHES NOMINAL
OVERALL THICKNESS0.020 INCHES MINIMUM AND 0.026 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-576,COLD ROLLED,SOFT ANNEALED FED SPEC SINGLE MATERIAL RESPONSE
MATERIALCOPPER ALLOY 130


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