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 6610-00-949-1289
NSN 6650-01-549-2126
NSN 6620-01-553-4096
NSN 7035-01-218-4233
NSN 6220-00-391-1076
NSN 5835-00-905-7165
NSN 6145-01-551-1419
NSN 5930-00-423-2803
NSN 5985-01-564-8190
NSN 5910-00-773-2652
NSN 6685-01-268-1724
NSN 6645-00-752-2939