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 6110-01-136-6852
NSN 5996-00-358-6257
NSN 2925-01-161-7440
NSN 6685-01-556-1126
NSN 6320-01-103-6218
NSN 5835-01-532-9373
NSN 5895-01-154-9125
NSN 5835-01-645-2892
NSN 5996-01-219-5091
NSN 5935-01-258-4556
NSN 5965-00-194-9875
NSN 5910-01-604-9958