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 5950-00-903-8693
NSN 5895-01-394-9176
NSN 6105-00-449-1124
NSN 5905-01-629-9727
NSN 6645-01-115-2171
NSN 4140-00-073-9866
NSN 6220-01-415-5698
NSN 5910-01-533-1457
NSN 6610-01-499-0776
NSN 5895-00-917-2920
NSN 6240-01-092-3509
NSN 6240-01-640-7265