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 5915-01-263-1880
NSN 5925-00-602-8623
NSN 6645-01-277-0530
NSN 5930-01-634-0659
NSN 5975-00-475-2407
NSN 5905-01-630-5522
NSN 5930-01-275-1918
NSN 5835-01-310-3846
NSN 5895-00-410-0080
NSN 5975-00-297-3940
NSN 6620-00-357-1157
NSN 6645-00-942-7170