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 5895-00-238-4618
NSN 7035-00-252-7467
NSN 7035-00-616-4410
NSN 6685-01-565-1801
NSN 5999-00-199-0213
NSN 5930-00-422-0163
NSN 6650-01-285-1266
NSN 6150-00-369-0376
NSN 6685-00-278-9496
NSN 5920-00-341-6340
NSN 2925-00-953-2920
NSN 6220-00-376-8103