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 5910-01-429-3054
NSN 6240-01-012-2706
NSN 6105-00-726-8058
NSN 6645-01-484-9847
NSN 5960-01-495-0859
NSN 6685-01-109-9595
NSN 5990-00-170-4239
NSN 5910-00-644-7300
NSN 4140-01-177-8495
NSN 6610-01-310-3313
NSN 5998-01-076-0320
NSN 6650-00-613-5660