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 6610-00-225-9886
NSN 6105-00-114-2165
NSN 6645-01-573-2536
NSN 7035-01-395-9174
NSN 5915-01-608-7428
NSN 6650-00-115-9240
NSN 6685-01-146-4498
NSN 6645-01-016-1306
NSN 6135-01-642-3557
NSN 5965-01-561-5738
NSN 5945-01-421-1808
NSN 5999-00-118-3702