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 5975-01-377-6365
NSN 5935-00-224-6020
NSN 6130-01-446-8758
NSN 6105-01-474-5246
NSN 5996-01-511-0458
NSN 5915-01-474-1937
NSN 5935-01-369-9094
NSN 5990-01-386-5561
NSN 6150-01-601-8157
NSN 7035-00-300-3208
NSN 6685-00-871-0335
NSN 5996-00-021-2112