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 5960-01-157-2641
NSN 5975-00-181-5825
NSN 6135-00-191-6444
NSN 6105-00-434-5622
NSN 6620-01-319-2667
NSN 6610-00-783-5570
NSN 5905-01-394-3678
NSN 5925-00-842-7299
NSN 6145-01-277-5367
NSN 5905-01-591-7382
NSN 6110-00-822-2917
NSN 5975-01-659-8953