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 5965-01-465-4370
NSN 6610-00-191-5317
NSN 5915-01-091-3537
NSN 5985-01-448-0585
NSN 6105-00-279-3044
NSN 5855-01-371-6790
NSN 6135-01-390-7364
NSN 5910-00-758-3031
NSN 6650-01-117-5347
NSN 5950-00-754-9671
NSN 7035-00-009-0099
NSN 6620-01-017-8765