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 5905-01-076-6301
NSN 5935-01-501-1739
NSN 6220-01-054-9112
NSN 5945-01-483-4304
NSN 5910-01-015-3946
NSN 6240-01-374-9367
NSN 6650-01-246-4262
NSN 6320-00-070-4544
NSN 5990-00-812-5037
NSN 4140-00-541-1015
NSN 5920-00-463-9890
NSN 5910-00-782-1996