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 6620-00-568-3947
NSN 5990-01-142-0538
NSN 5996-01-212-5295
NSN 5905-00-209-6537
NSN 5925-01-437-5725
NSN 6220-01-582-2571
NSN 5950-01-596-1269
NSN 5905-01-328-7904
NSN 7035-01-200-4751
NSN 6650-01-414-9784
NSN 6220-01-540-2161
NSN 6105-01-569-3191