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 5998-00-499-6051
NSN 6150-01-435-5026
NSN 5965-01-570-4711
NSN 6135-00-422-3967
NSN 5960-01-287-4187
NSN 5990-00-389-0554
NSN 5925-00-345-7746
NSN 6135-00-628-1142
NSN 5975-01-477-5925
NSN 5999-01-536-0611
NSN 5835-01-350-0566
NSN 6685-01-490-3291