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 6145-00-266-8453
NSN 6150-01-157-8432
NSN 6220-01-415-3115
NSN 5895-00-969-4025
NSN 6105-01-314-1265
NSN 7035-01-599-7560
NSN 5905-00-612-0010
NSN 5950-01-548-3055
NSN 5895-00-023-4438
NSN 5855-00-466-2309
NSN 6320-01-067-0474
NSN 5998-00-434-6501