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 7035-01-063-8753
NSN 5930-01-412-0636
NSN 5925-01-508-4145
NSN 5835-00-438-4489
NSN 5950-01-599-5109
NSN 6135-01-062-9356
NSN 6610-01-236-8359
NSN 6650-01-027-7165
NSN 5960-00-623-4309
NSN 5990-00-124-2556
NSN 6610-01-382-1472
NSN 5920-00-584-4592