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 2925-01-400-2286
NSN 5895-00-715-0896
NSN 5950-00-971-5711
NSN 5925-01-386-6188
NSN 5905-00-983-4144
NSN 5925-00-003-4722
NSN 5915-00-243-5950
NSN 5960-01-177-0338
NSN 5920-01-378-6528
NSN 6685-00-578-0974
NSN 6650-00-866-9947
NSN 7035-01-596-9396