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 5895-01-437-8795
NSN 5915-00-710-1705
NSN 6645-00-678-0914
NSN 5950-01-146-5548
NSN 5930-01-131-6304
NSN 5960-01-599-9821
NSN 6320-01-415-0953
NSN 6135-01-100-3593
NSN 6685-00-188-1991
NSN 5905-01-056-5086
NSN 5935-01-566-6508
NSN 5975-01-546-0848