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 6610-01-514-7755
NSN 6610-01-571-8038
NSN 5920-01-536-3603
NSN 6220-01-048-5584
NSN 5910-01-354-3204
NSN 6645-01-076-4655
NSN 6135-01-029-9315
NSN 6320-00-725-0754
NSN 6220-00-452-5308
NSN 5910-00-238-7354
NSN 6150-01-170-4065
NSN 5975-01-347-3577