type 1 comp a
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 6130-01-290-3310
NSN 6620-01-468-0362
NSN 4140-01-576-1341
NSN 6650-01-574-0019
NSN 6135-01-238-2878
NSN 5930-00-494-1708
NSN 5930-01-138-2029
NSN 6135-01-278-9717
NSN 6685-01-041-4407
NSN 5915-00-443-3987
NSN 5835-01-578-3443
NSN 5910-00-903-8325