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 5920-01-501-9998
NSN 5975-00-171-1344
NSN 5965-01-160-7037
NSN 7035-00-193-2269
NSN 6320-01-504-3948
NSN 5895-00-736-8814
NSN 6135-00-240-3200
NSN 6105-01-573-8234
NSN 7035-01-199-6915
NSN 4140-00-064-2086
NSN 5985-01-584-1387
NSN 5965-01-504-8199