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 6135-01-408-9244
NSN 5915-01-118-7575
NSN 7035-00-329-4015
NSN 5930-01-159-3831
NSN 5950-01-571-1699
NSN 6105-01-194-4877
NSN 6650-00-008-3941
NSN 5905-01-500-8935
NSN 7035-01-146-7096
NSN 5950-01-555-8776
NSN 6645-01-590-9405
NSN 5985-00-959-7190