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 6320-00-242-3300
NSN 6610-00-143-7755
NSN 6620-00-932-6508
NSN 5975-01-553-3759
NSN 5960-01-531-9108
NSN 5935-01-093-7883
NSN 6685-01-549-3775
NSN 5930-01-273-3421
NSN 5999-01-060-5104
NSN 5996-00-740-8315
NSN 5920-00-309-0338
NSN 6240-01-556-5808