2840-00-670-8873 BLADE,TURBINE ROTOR,AIRCRAFT GAS Index 4320-00-670-8876 PUMP,ROTARY

National Stock Number:
5365-00-670-8875

Federal Supply Class:
5365

National Item Identification Number:
006708875

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:
678713024617GENERAL MOTORS CORP
678713073342ALLISON TRANSMISSION INC


Techincal Specification:
FEATURES PROVIDEDCASEHARDENED
INSIDE DIAMETER6.305 INCHES MINIMUM AND 6.307 INCHES MAXIMUM
OUTSIDE DIAMETER6.875 INCHES NOMINAL
OVERALL THICKNESS0.378 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
MATERIALSTEEL
SURFACE FINISH63.0 MICROINCHES BORE
SURFACE FINISH63.0 MICROINCHES LARGEST OUTSIDE DIAMETER
SURFACE FINISH63.0 MICROINCHES LEFT SIDE
SURFACE FINISH63.0 MICROINCHES RIGHT SIDE
SURFACE TREATMENTPHOSPHATE


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