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 5945-01-628-8554
NSN 5999-01-377-3618
NSN 5915-00-415-5349
NSN 6620-00-269-5168
NSN 5960-01-099-5804
NSN 5945-01-442-3526
NSN 5945-01-398-1831
NSN 6105-00-773-8480
NSN 5835-01-473-1620
NSN 5945-01-394-8426
NSN 6610-01-648-4460
NSN 5998-00-599-1826