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 5985-00-518-0313
NSN 6645-00-900-5830
NSN 5965-01-535-0718
NSN 6320-00-270-8222
NSN 6320-01-094-2634
NSN 6135-01-339-8064
NSN 5999-01-463-6476
NSN 6110-01-413-8347
NSN 6645-00-256-4072
NSN 6150-01-430-9512
NSN 5930-01-495-1925
NSN 6650-01-145-5663