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 5925-01-044-5508
NSN 5855-01-301-0158
NSN 5905-01-408-2590
NSN 5945-01-218-7887
NSN 4140-01-259-4149
NSN 6620-00-210-8406
NSN 5835-01-250-2939
NSN 2925-00-774-8247
NSN 5855-01-295-2313
NSN 5990-01-025-7466
NSN 5905-01-411-6520
NSN 5915-01-377-9666