1680-01-520-9444 SHIM,AIRCRAFT,MATER Index 1680-01-520-9445 COVER ASSY,FLIR,AIR

National Stock Number:
5365-01-520-9444

Federal Supply Class:
5365

National Item Identification Number:
015209444

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:
901-011-472-10197499BELL TEXTRON INC


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONFEAT
INSIDE DIAMETER17.290 INCHES MINIMUM AND 17.310 INCHES MAXIMUM
OUTSIDE DIAMETER18.740 INCHES MINIMUM AND 18.760 INCHES MAXIMUM
OVERALL THICKNESS0.125 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY SHIM , AIRCRAFT , MATER
MATERIALSTEEL
SPECIAL FEATURESESSENTIAL TO WEAPON SYSTEM PERFORMANCE OR OPERATION, OR THE PRESERVATION OF LIFE OR SAFETY OF OPERATING PERSONNEL


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