An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 6685-01-039-6411
NSN 5990-01-500-5412
NSN 6220-01-158-2871
NSN 5930-00-107-2690
NSN 6130-01-579-9725
NSN 4140-01-246-3090
NSN 6105-01-475-2195
NSN 5965-00-161-4578
NSN 6320-01-081-7748
NSN 6320-00-593-0379
NSN 5985-01-529-7280
NSN 5985-00-244-0842