A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5895-01-526-4481
NSN 6135-01-536-4693
NSN 7035-01-199-6915
NSN 5945-00-293-8333
NSN 5910-00-574-5753
NSN 5985-01-435-4425
NSN 5945-01-374-1828
NSN 5998-00-050-9370
NSN 6145-01-028-4494
NSN 6145-01-387-9473
NSN 5999-01-323-7113
NSN 6110-00-305-2838