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 7035-01-633-9537
NSN 6105-01-508-5937
NSN 5945-01-470-6517
NSN 6685-00-737-0795
NSN 6130-00-496-0549
NSN 6150-00-448-2357
NSN 6145-00-827-4958
NSN 5965-00-529-0602
NSN 6135-01-017-3001
NSN 5905-00-459-4531
NSN 5915-00-278-5561
NSN 6130-01-400-6123