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 6610-00-127-0849
NSN 6135-01-329-6022
NSN 6135-01-400-2947
NSN 5965-01-111-0983
NSN 6240-00-284-1457
NSN 6685-01-089-9606
NSN 5895-01-308-2523
NSN 5999-01-323-6676
NSN 5999-00-328-2172
NSN 5910-01-605-1469
NSN 4140-01-195-0372
NSN 6320-01-056-1164