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 6650-01-364-8504
NSN 6645-00-810-7229
NSN 5910-01-304-2021
NSN 5950-01-050-9114
NSN 2925-01-206-5232
NSN 6240-01-275-9719
NSN 5990-00-116-6590
NSN 6645-01-485-6536
NSN 5895-00-809-0055
NSN 5960-00-717-7844
NSN 6645-01-101-9587
NSN 6620-00-646-9474