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 2925-01-535-7235
NSN 4140-01-539-5410
NSN 6650-01-157-8806
NSN 5910-01-441-2301
NSN 4140-01-250-7159
NSN 6145-01-200-5020
NSN 6135-00-078-9931
NSN 5895-01-383-9868
NSN 5935-01-373-8945
NSN 5905-00-406-8351
NSN 5915-01-202-8195
NSN 5925-01-059-0275