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 6610-00-781-2588
NSN 5945-01-308-3514
NSN 5998-01-624-2211
NSN 6240-00-068-5543
NSN 6645-01-045-4088
NSN 5945-01-435-5874
NSN 6150-00-405-0608
NSN 6220-01-005-2134
NSN 5915-01-377-1085
NSN 5905-01-292-8773
NSN 6610-01-336-2787
NSN 6105-01-442-7801