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 6240-01-108-6766
NSN 6105-00-647-3955
NSN 5910-01-431-6583
NSN 6685-01-252-8887
NSN 5930-01-578-5810
NSN 6620-00-151-5363
NSN 6145-00-065-9580
NSN 5975-01-650-6308
NSN 7035-01-478-0212
NSN 6105-01-263-3989
NSN 6685-01-242-3415
NSN 4140-01-510-9666