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 5965-01-653-1626
NSN 6645-01-056-5291
NSN 5950-00-264-1146
NSN 6135-01-282-4326
NSN 6610-00-891-6370
NSN 5855-01-286-9928
NSN 5990-01-074-6549
NSN 5925-00-918-5531
NSN 5915-01-054-8584
NSN 5925-00-111-1969
NSN 4140-01-016-3143
NSN 6645-00-754-4108