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 5935-01-371-9774
NSN 5975-00-541-8531
NSN 6650-00-499-4439
NSN 6130-00-971-5812
NSN 5935-00-012-0296
NSN 2925-00-335-7119
NSN 5855-01-364-9810
NSN 5960-01-287-4187
NSN 5998-01-443-3120
NSN 6105-01-536-6709
NSN 6620-00-022-8056
NSN 5990-01-442-3520