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 5930-00-481-8762
NSN 5910-01-512-8782
NSN 7035-00-213-2387
NSN 2925-01-439-0219
NSN 6135-01-650-6529
NSN 5996-01-113-7960
NSN 6145-00-938-6085
NSN 6130-01-629-9361
NSN 6610-00-118-4318
NSN 5920-00-785-5471
NSN 6645-00-269-2764
NSN 5905-01-591-3237