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 6150-00-791-3338
NSN 6150-01-227-2595
NSN 5905-01-546-5503
NSN 5945-01-634-0588
NSN 5975-01-265-2702
NSN 5975-01-508-5818
NSN 6150-01-014-5691
NSN 6145-01-565-3863
NSN 6150-00-278-7070
NSN 6135-01-588-4160
NSN 6610-01-117-7130
NSN 5935-01-494-8723