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 6105-01-382-9690
NSN 6130-01-444-0557
NSN 5975-01-026-4995
NSN 6240-01-537-6384
NSN 5855-01-387-1928
NSN 6220-00-269-4556
NSN 5930-00-951-9732
NSN 6320-00-116-3658
NSN 5960-01-020-2841
NSN 5910-01-245-1401
NSN 6145-01-194-0525
NSN 6610-01-619-9156