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 5930-00-318-9133
NSN 6685-01-331-6078
NSN 5925-01-122-1524
NSN 5925-00-999-6032
NSN 6110-01-117-3657
NSN 5905-01-660-4221
NSN 6220-01-322-8450
NSN 6130-00-553-8758
NSN 7035-01-155-0153
NSN 6610-01-296-4031
NSN 6220-01-071-8217
NSN 5965-00-686-7067