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 6135-01-577-5532
NSN 6150-01-041-7191
NSN 6650-01-191-1669
NSN 5985-00-622-1544
NSN 6130-01-508-7732
NSN 7035-01-406-5232
NSN 2925-00-444-1186
NSN 7035-00-679-9027
NSN 5910-01-446-7579
NSN 6220-01-331-3468
NSN 6650-00-111-3399
NSN 5920-01-155-7058