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 6135-00-269-5843
NSN 5990-01-064-4852
NSN 5965-00-387-6880
NSN 5910-01-411-9930
NSN 5895-01-458-6023
NSN 6645-01-166-1891
NSN 5965-00-478-3442
NSN 2925-01-328-4394
NSN 6105-00-757-3075
NSN 6320-01-317-0926
NSN 6620-01-361-8685
NSN 6650-00-909-8380