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 5910-01-324-2823
NSN 6105-00-374-8743
NSN 6220-00-076-8542
NSN 5990-01-555-6616
NSN 5935-01-363-7384
NSN 5975-01-493-3263
NSN 5985-01-483-1042
NSN 2925-01-014-0118
NSN 5950-01-373-1109
NSN 4140-01-653-0130
NSN 6240-01-423-1335
NSN 5975-00-364-2603