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 5895-01-498-0142
NSN 5950-00-947-8275
NSN 6685-01-177-8648
NSN 5945-00-882-8433
NSN 6685-00-180-8999
NSN 7035-01-267-4836
NSN 6135-00-990-1822
NSN 6650-00-138-3079
NSN 5905-00-954-5790
NSN 5920-01-069-0270
NSN 5930-00-862-5582
NSN 6220-01-024-9444