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 5855-01-419-5285
NSN 5999-00-804-3588
NSN 5960-01-111-5142
NSN 5855-00-494-9581
NSN 5920-01-557-9604
NSN 5905-00-343-0670
NSN 5975-01-149-6626
NSN 5990-01-514-8708
NSN 5950-00-792-0793
NSN 6645-00-388-3463
NSN 6610-01-633-8931
NSN 5985-00-835-1218