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 7035-00-585-2113
NSN 6105-00-252-3233
NSN 5915-01-432-0324
NSN 6650-01-065-1704
NSN 6240-01-023-7720
NSN 5925-01-516-5447
NSN 5930-01-284-4257
NSN 5960-01-225-1610
NSN 5920-01-065-1824
NSN 6240-01-415-8479
NSN 5996-01-468-3313
NSN 6110-01-202-6692