4920-00-413-6217 FIXTURE,AIRCRAFT MAINTENANCE Index 5306-00-413-6250 BOLT,INTERNAL WRENCHING

National Stock Number:
5365-00-413-6218

Federal Supply Class:
5365

National Item Identification Number:
004136218

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:
326591682577RAYTHEON COMPANY


Techincal Specification:
INSIDE DIAMETER0.189 INCHES MINIMUM AND 0.191 INCHES MAXIMUM
OUTSIDE DIAMETER0.230 INCHES MINIMUM AND 0.234 INCHES MAXIMUM
OVERALL THICKNESS0.049 INCHES MINIMUM AND 0.051 INCHES MAXIMUM


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