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 5985-00-189-0953
NSN 5975-01-650-8317
NSN 5996-00-308-6512
NSN 6610-01-548-0130
NSN 5999-00-893-4095
NSN 5915-00-644-0356
NSN 5996-00-683-5176
NSN 6685-01-216-4146
NSN 6110-01-461-6048
NSN 6620-01-026-1776
NSN 5910-01-197-7358
NSN 6320-01-386-9104