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 6110-00-905-6148
NSN 5895-01-186-6286
NSN 6145-00-889-1491
NSN 5855-01-486-5046
NSN 6135-00-269-5843
NSN 6240-01-406-5345
NSN 5985-00-984-6116
NSN 5960-01-495-0859
NSN 6685-00-194-3571
NSN 5905-01-059-3565
NSN 5855-01-314-8335
NSN 6240-01-432-4547