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 5965-00-706-7005
NSN 5905-01-368-5044
NSN 6650-00-678-5627
NSN 6130-01-058-0562
NSN 5960-00-245-2645
NSN 5895-01-131-7460
NSN 6620-01-552-0049
NSN 6650-01-178-8731
NSN 5835-01-013-9321
NSN 5950-01-442-7195
NSN 5999-00-715-0872
NSN 5835-00-632-8621