5365-00-891-3389 SPACER,SLEEVE Index 5365-00-891-3391 SPACER,SLEEVE

National Stock Number:
5365-00-891-3390

Federal Supply Class:
5365

National Item Identification Number:
008913390

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:
576C417P2107482GENERAL ELECTRIC COMPANY


Techincal Specification:
FSC APPLICATION DATA1. GEARBOX,TRANSMISSION,ENGINE AIRCRAFT
INSIDE DIAMETER4.240 INCHES MINIMUM AND 4.280 INCHES MAXIMUM
OUTSIDE DIAMETER4.520 INCHES MINIMUM AND 4.540 INCHES MAXIMUM
OVERALL THICKNESS0.470 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
MATERIALMAGNESIUM ALLOY
SURFACE FINISH125.0 MICROINCHES OVERALL


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