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 5835-01-085-5487
NSN 5996-00-259-0309
NSN 5945-01-281-7404
NSN 5945-01-483-7661
NSN 5965-01-112-8758
NSN 6240-01-461-9635
NSN 6105-01-122-0184
NSN 5965-00-716-7078
NSN 5925-01-145-5330
NSN 5996-00-249-6091
NSN 5905-01-382-9671
NSN 5855-01-484-6507