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 2925-00-088-6790
NSN 7035-01-328-7448
NSN 5835-01-447-2544
NSN 6145-01-367-1404
NSN 6240-01-010-2991
NSN 6105-00-103-9907
NSN 6610-00-979-4011
NSN 5965-01-172-5724
NSN 6105-00-719-4246
NSN 7035-01-352-6235
NSN 5999-01-294-2462
NSN 5855-00-221-9435