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 6110-00-235-6395
NSN 2925-01-113-6904
NSN 6620-01-068-4498
NSN 5960-01-246-4809
NSN 5930-00-217-2984
NSN 7035-01-633-9537
NSN 6220-01-159-9080
NSN 5990-00-972-1404
NSN 5975-00-847-8850
NSN 6110-01-130-2387
NSN 6685-00-601-5982
NSN 5950-01-050-7742