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 6685-01-173-5618
NSN 5990-01-378-7349
NSN 5910-01-485-6793
NSN 5835-01-117-6124
NSN 5920-01-623-4260
NSN 5999-01-190-7386
NSN 7035-01-193-2667
NSN 6130-01-364-8830
NSN 5996-00-438-7532
NSN 6150-00-167-1018
NSN 6130-01-366-7481
NSN 6685-00-088-3562