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 6650-01-211-5579
NSN 5835-01-461-8184
NSN 6105-00-664-1292
NSN 6685-01-041-4407
NSN 5905-01-045-3660
NSN 6105-01-500-7599
NSN 6320-01-141-3791
NSN 5965-01-215-0993
NSN 5835-01-473-1620
NSN 5998-01-117-9381
NSN 5925-01-652-9617
NSN 5935-01-364-1179