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 7035-00-830-1235
NSN 4140-00-554-7273
NSN 6650-00-477-9946
NSN 6685-00-824-6146
NSN 5855-01-046-7273
NSN 5925-00-411-5170
NSN 6110-01-086-1409
NSN 5985-01-138-2515
NSN 6110-01-555-7446
NSN 5999-01-095-3494
NSN 5965-00-300-8055
NSN 5975-01-184-5833