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 5985-00-942-9502
NSN 5855-01-428-9456
NSN 5905-01-080-2166
NSN 5960-00-847-3445
NSN 5990-00-703-4926
NSN 5975-01-024-6960
NSN 5910-01-474-5388
NSN 6110-00-188-9874
NSN 6685-00-570-0095
NSN 5935-01-285-2451
NSN 6240-01-364-8696
NSN 5999-01-163-3432