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 6220-00-515-6998
NSN 6105-00-723-3413
NSN 6130-01-406-2946
NSN 5835-01-061-1647
NSN 5945-01-634-0588
NSN 5985-01-399-0614
NSN 6220-00-675-1925
NSN 5835-00-876-4544
NSN 2925-01-533-7904
NSN 6650-01-572-3490
NSN 6610-01-361-2880
NSN 5915-01-436-6527