Material is grade 80002; alt.Material is grade 80-55-06 per astem-a536; phosphate is class 1 with non-drying petroleum oils; rockwell hardness a57- 63
A trunicated cone-shaped metal item generally tapered along its entire peripheral length, with a centrally located hole. It may be split (cut) through the material parallel to the axis.
NSN 6150-01-276-0101
NSN 5950-00-960-7383
NSN 5895-00-777-3504
NSN 5965-01-055-7645
NSN 6145-00-016-8768
NSN 5930-01-579-3732
NSN 5965-01-425-1347
NSN 5935-01-323-5361
NSN 6105-00-926-6406
NSN 5998-01-628-0157
NSN 5990-01-601-0466
NSN 6110-00-103-5702