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 5999-01-062-4039
NSN 6645-01-462-2101
NSN 5945-00-700-1091
NSN 6685-01-324-6966
NSN 5945-00-138-4026
NSN 6320-01-396-2080
NSN 6130-01-528-7000
NSN 6135-01-280-2883
NSN 5910-00-816-9909
NSN 5905-00-902-7737
NSN 5996-01-276-9420
NSN 6130-01-518-0474