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 6220-00-635-8818
NSN 5920-01-363-9397
NSN 5855-00-782-7714
NSN 6105-01-259-2952
NSN 6645-01-564-6270
NSN 7035-00-585-2113
NSN 5950-01-519-2709
NSN 5910-00-972-9700
NSN 6685-00-538-0911
NSN 4140-01-364-0109
NSN 5990-01-154-3859
NSN 6145-00-275-0811