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 5960-01-251-3912
NSN 5985-01-562-9337
NSN 5998-00-631-8236
NSN 6150-01-160-6489
NSN 5925-01-298-8120
NSN 5835-00-366-0240
NSN 6110-00-190-7523
NSN 5930-01-430-2510
NSN 4140-01-369-8109
NSN 5925-00-068-8880
NSN 5950-01-093-0827
NSN 5920-00-152-4003