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 5990-00-932-3070
NSN 5985-01-135-5362
NSN 5895-01-090-6129
NSN 5950-01-445-8905
NSN 6145-00-258-3608
NSN 5925-01-328-7382
NSN 6320-01-194-1253
NSN 6105-01-383-3392
NSN 2925-01-408-6205
NSN 6135-00-883-9024
NSN 5925-01-320-9904
NSN 5930-00-707-6899