4920-01-468-9426 FIXTURE,ENGINE MAINTENANCE,AIRCR Index 7105-01-468-9428 MIRROR,GLASS

National Stock Number:
5365-01-468-9427

Federal Supply Class:
5365

National Item Identification Number:
014689427

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:
17G230052-988277THE BOEING COMPANY


Techincal Specification:
INSIDE DIAMETER0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING
OUTSIDE DIAMETER0.500 INCHES NOMINAL
OVERALL THICKNESS0.095 INCHES NOMINAL
SURFACE FINISH125.0 MICROINCHES OVERALL


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