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 5965-00-913-9545
NSN 7035-01-371-0091
NSN 7035-00-145-9138
NSN 5905-01-281-2938
NSN 5999-01-131-8098
NSN 6130-01-215-9910
NSN 5835-00-289-9080
NSN 2925-00-491-3549
NSN 5945-01-274-9482
NSN 5990-00-076-9839
NSN 6645-01-400-2119
NSN 6650-01-646-6909