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 5998-01-167-8402
NSN 5985-01-509-9734
NSN 6685-01-261-8058
NSN 7035-01-129-7834
NSN 5895-01-270-3593
NSN 5905-01-009-3398
NSN 5975-00-203-8416
NSN 5999-01-155-5446
NSN 6220-01-500-7388
NSN 5950-00-141-5973
NSN 6240-01-465-2237
NSN 5985-00-414-0757