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 5985-00-887-5831
NSN 5935-00-325-8429
NSN 6135-01-598-9890
NSN 6650-01-204-7841
NSN 5920-01-573-7609
NSN 5999-01-340-7148
NSN 5935-01-099-8382
NSN 6220-01-215-8627
NSN 5910-01-181-5677
NSN 6320-01-600-0787
NSN 6610-01-013-6518
NSN 6320-00-977-3930