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 5895-01-177-5137
NSN 5945-00-259-5165
NSN 6620-00-500-0041
NSN 6645-01-367-8911
NSN 5975-01-090-1062
NSN 6150-00-303-1565
NSN 6220-01-200-3410
NSN 5915-01-514-8100
NSN 6645-00-692-2809
NSN 6685-01-074-4695
NSN 6645-00-372-2618
NSN 5910-01-362-9155