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 5965-00-836-2690
NSN 5910-00-437-3647
NSN 5960-00-170-6447
NSN 6145-01-141-7937
NSN 5950-00-316-3533
NSN 5910-01-065-0977
NSN 6240-01-158-0402
NSN 6110-00-099-7113
NSN 6320-01-388-3125
NSN 5998-01-147-1189
NSN 5945-01-057-5555
NSN 6685-01-274-2423