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 6110-01-577-5947
NSN 5855-00-532-0025
NSN 5920-01-487-0010
NSN 4140-01-068-0140
NSN 5960-00-270-3326
NSN 2925-00-041-0439
NSN 6135-01-619-1582
NSN 5855-01-147-4785
NSN 6620-01-168-8450
NSN 5930-01-459-9004
NSN 5950-01-617-2288
NSN 2925-01-442-7812