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 5925-01-167-8144
NSN 5895-01-429-8561
NSN 6110-00-974-2046
NSN 6645-01-321-7665
NSN 5835-01-463-2334
NSN 5915-00-988-7931
NSN 5910-00-552-0830
NSN 6240-01-604-9172
NSN 5835-01-182-1966
NSN 6320-00-546-9249
NSN 6110-01-418-0802
NSN 6220-01-302-0185