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 5975-01-118-5248
NSN 6110-00-764-9362
NSN 5985-00-067-9642
NSN 6685-01-123-1922
NSN 5945-01-327-3629
NSN 2925-00-957-7329
NSN 6620-00-153-0982
NSN 6685-00-469-4520
NSN 6685-01-081-0365
NSN 6150-01-036-0646
NSN 5965-01-363-9310
NSN 6610-01-608-5285