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 7035-01-114-3134
NSN 5930-01-427-3676
NSN 5945-01-350-3649
NSN 5905-01-655-4519
NSN 6145-01-442-0621
NSN 5835-01-143-9143
NSN 6145-01-249-1012
NSN 6240-00-617-1035
NSN 5910-01-340-9074
NSN 6685-00-492-9817
NSN 6145-00-508-8353
NSN 5930-01-079-9212