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 2925-01-327-3069
NSN 5975-00-306-4688
NSN 5905-01-472-2361
NSN 6610-01-023-1816
NSN 6135-01-069-2482
NSN 5990-01-266-9144
NSN 6130-01-381-2969
NSN 5855-01-535-2266
NSN 2925-00-105-3907
NSN 5835-00-092-1136
NSN 2925-00-144-3314
NSN 5975-00-440-2320