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 5895-01-599-9832
NSN 5960-01-141-6489
NSN 2925-01-474-3363
NSN 5960-01-067-4604
NSN 6685-01-619-9937
NSN 6145-00-081-3993
NSN 6650-01-557-4143
NSN 5990-00-678-6006
NSN 5920-01-211-5557
NSN 5905-01-020-7137
NSN 6650-01-039-4795
NSN 5895-00-872-4276