4730-00-936-9217 PLUG,ACCESSORY SUPO Index 2840-00-936-9220 NUT-SELF-LOCKING

National Stock Number:
5365-00-936-9218

Federal Supply Class:
5365

National Item Identification Number:
009369218

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:
56725700088ROYAL OAK GAGE INC
56725777445RTX CORPORATION


Techincal Specification:
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
INSIDE DIAMETER12.008 INCHES MINIMUM AND 12.012 INCHES MAXIMUM
OUTSIDE DIAMETER13.090 INCHES MINIMUM AND 13.110 INCHES MAXIMUM
OVERALL THICKNESS0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM
MATERIALSTEEL CORROSION RESISTING
SURFACE FINISH63.0 MICROINCHES LEFT SIDE
SURFACE FINISH63.0 MICROINCHES RIGHT SIDE
SURFACE FINISH90.0 MICROINCHES BORE
SURFACE FINISH90.0 MICROINCHES LARGEST OUTSIDE DIAMETER


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