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 6150-00-681-1664
NSN 6610-01-599-4462
NSN 5925-00-450-6372
NSN 5935-01-246-1055
NSN 5998-01-388-2210
NSN 6110-01-028-5500
NSN 6610-01-612-8327
NSN 4140-01-573-5509
NSN 5935-00-061-0773
NSN 6685-01-261-8058
NSN 6105-01-159-9508
NSN 6685-01-408-7758