Bell helicopter and vendor part no. Permanently marked on face of bearing, surface finish raceway 10 uin aa max, rollers 4 uin aa max, max rollerdia variation 0.0001 in. Per bearing at roller mid lg, max diameter variation perroller 0.00005 in., bearing protected w/petroleum per mil-c-11796 cl 2
A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.
Classification: Needle roller bearings
NSN 5910-01-113-6636
NSN 5925-00-687-1625
NSN 5910-01-416-4146
NSN 6145-01-156-5219
NSN 6130-00-762-1591
NSN 6240-01-633-9357
NSN 5925-01-654-2687
NSN 5950-01-652-2038
NSN 5975-01-196-4990
NSN 5960-01-398-4883
NSN 5925-01-049-4091
NSN 5895-01-415-3114