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 5910-01-275-0741
NSN 2925-00-749-8893
NSN 6645-01-454-1929
NSN 5960-01-318-0987
NSN 5925-01-576-7042
NSN 6130-00-296-1412
NSN 6240-00-994-4056
NSN 6645-00-720-3953
NSN 6650-00-601-8944
NSN 6145-01-009-0362
NSN 6685-01-441-9378
NSN 5950-01-242-9557