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 6685-01-411-6958
NSN 5920-01-319-6790
NSN 5895-01-514-8597
NSN 6150-01-504-8751
NSN 5915-01-495-1384
NSN 6650-00-717-8913
NSN 5999-01-341-0820
NSN 2925-00-265-7539
NSN 6110-00-905-6148
NSN 6150-01-063-8315
NSN 6320-01-347-2638
NSN 7035-01-122-1264