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 6150-01-588-7100
NSN 6130-01-553-4293
NSN 5835-01-098-4289
NSN 6685-01-509-5302
NSN 6220-01-042-1132
NSN 5895-01-401-5388
NSN 6240-00-025-9203
NSN 5975-00-763-5437
NSN 4140-00-450-9874
NSN 6135-00-162-2437
NSN 6130-01-025-6770
NSN 6150-01-643-5362