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 5895-01-391-2728
NSN 6105-01-634-0322
NSN 5925-01-310-8456
NSN 5996-01-471-7315
NSN 5935-01-428-9416
NSN 6645-00-417-1998
NSN 5990-01-320-1412
NSN 6685-01-596-0519
NSN 6620-00-898-2744
NSN 5960-00-296-5932
NSN 5910-01-538-6017
NSN 7035-00-794-0792