Lubricating ball indents
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 5835-01-632-6627
NSN 2925-01-004-5627
NSN 5945-01-596-0312
NSN 6135-01-415-1163
NSN 5835-00-170-4808
NSN 6650-00-851-7615
NSN 5975-01-176-3615
NSN 6240-01-085-1314
NSN 5930-01-312-6446
NSN 6135-01-354-5535
NSN 2925-00-759-5465
NSN 5990-01-238-1975