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 5975-00-246-4906
NSN 6150-01-212-3003
NSN 7035-01-363-3723
NSN 5855-01-357-7907
NSN 6130-01-598-6424
NSN 6110-00-301-4874
NSN 6105-00-889-6961
NSN 5920-00-113-6041
NSN 6650-01-079-3920
NSN 5999-01-514-7219
NSN 5905-01-125-7968
NSN 5965-01-010-1258