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 5945-01-167-8498
NSN 7035-00-585-2113
NSN 5945-00-020-2765
NSN 5998-01-206-9181
NSN 5905-00-804-2768
NSN 5925-00-233-5125
NSN 5985-01-425-1753
NSN 6685-01-258-1238
NSN 6645-01-387-7209
NSN 5915-01-246-4563
NSN 6645-01-446-1994
NSN 5855-01-587-6166