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 5905-00-706-8963
NSN 5905-01-137-1606
NSN 5985-01-050-2958
NSN 6620-01-271-8984
NSN 5920-01-252-8660
NSN 6620-01-633-8443
NSN 6685-00-573-7870
NSN 6110-00-471-9423
NSN 5925-00-735-1350
NSN 5935-01-478-6089
NSN 6645-01-451-9735
NSN 5925-00-717-5973