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 6650-01-356-3123
NSN 5905-01-336-2983
NSN 6685-00-153-3914
NSN 5960-01-407-1350
NSN 6650-01-014-7671
NSN 5999-01-370-4184
NSN 6620-00-816-9755
NSN 5905-01-297-3438
NSN 5910-01-443-3625
NSN 6620-01-513-2310
NSN 6320-01-519-8767
NSN 6620-01-259-5944