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 5935-01-533-1561
NSN 6110-00-243-1646
NSN 2925-00-977-3311
NSN 5975-00-850-6809
NSN 6150-01-130-2941
NSN 5915-00-594-4451
NSN 5925-00-262-5651
NSN 5905-01-090-5354
NSN 7035-01-224-5165
NSN 5915-00-733-9189
NSN 5996-01-577-3838
NSN 5996-00-111-1538