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 5999-00-070-1621
NSN 6685-00-351-9082
NSN 2925-01-334-7122
NSN 5935-01-105-6708
NSN 5999-00-802-6311
NSN 6220-00-264-9473
NSN 5835-01-565-3411
NSN 6110-01-127-0952
NSN 5960-01-601-5565
NSN 5965-01-433-9864
NSN 6220-01-514-2827
NSN 4140-01-149-9066