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 5985-01-128-3953
NSN 7035-00-043-1325
NSN 5910-01-025-0803
NSN 5990-01-083-2430
NSN 6645-00-519-1026
NSN 6105-01-550-0577
NSN 6320-01-140-1763
NSN 5920-01-472-6923
NSN 2925-00-265-7539
NSN 6150-01-270-8676
NSN 5990-00-678-6006
NSN 4140-01-364-4113