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 5960-00-647-9159
NSN 2925-01-027-1293
NSN 5910-01-424-0225
NSN 5960-00-778-6167
NSN 5990-00-170-4239
NSN 6685-01-444-0974
NSN 6645-01-365-1511
NSN 6610-01-433-2219
NSN 6645-00-166-7926
NSN 6220-01-164-7654
NSN 5975-01-634-0678
NSN 5965-01-140-1522