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 6650-00-658-9627
NSN 6650-01-392-2204
NSN 5965-01-046-9619
NSN 5945-01-481-4504
NSN 6685-01-315-8618
NSN 5895-01-646-6203
NSN 5920-00-283-7178
NSN 6685-01-506-8079
NSN 6145-00-403-9458
NSN 2925-01-425-7087
NSN 5990-01-517-7848
NSN 5998-01-433-1458