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 6130-01-225-5658
NSN 6610-00-780-3065
NSN 5998-01-023-1636
NSN 5945-00-911-5974
NSN 5990-00-008-1828
NSN 6650-00-515-6002
NSN 6320-01-521-1764
NSN 6130-00-264-6078
NSN 5925-01-086-7424
NSN 6685-01-209-4319
NSN 5835-00-537-7780
NSN 6610-01-318-6713