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 5965-01-603-7959
NSN 5835-01-286-3600
NSN 5990-00-902-7764
NSN 6685-01-442-0701
NSN 6240-01-160-4248
NSN 5960-01-323-6432
NSN 5990-01-200-7460
NSN 6135-01-426-8282
NSN 5985-01-614-8960
NSN 5910-01-472-2232
NSN 5960-01-389-0629
NSN 6650-00-073-5154