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 5925-01-431-1410
NSN 6110-01-338-6033
NSN 6685-01-054-4409
NSN 5999-01-588-0736
NSN 6135-00-315-1187
NSN 5998-00-994-1451
NSN 6320-00-646-3311
NSN 4140-00-337-6631
NSN 6685-01-327-3286
NSN 6135-01-220-7193
NSN 2925-01-175-1217
NSN 6650-01-596-3297