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 2925-01-147-6688
NSN 6105-00-301-3896
NSN 5975-01-016-9493
NSN 6150-00-873-7568
NSN 6645-01-113-5411
NSN 5975-00-327-4477
NSN 5835-01-170-0271
NSN 6150-01-351-3351
NSN 6110-01-435-4400
NSN 6685-01-158-5454
NSN 5998-00-438-3370
NSN 5930-01-018-7997