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 6220-01-659-2472
NSN 6130-00-437-3831
NSN 5945-01-645-4780
NSN 5960-01-219-5504
NSN 6145-01-155-4488
NSN 5945-01-498-2151
NSN 5905-00-486-1893
NSN 6645-01-535-7136
NSN 5835-01-135-2601
NSN 6145-01-480-6252
NSN 5920-00-403-4899
NSN 5920-01-501-4345