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 6130-01-592-2961
NSN 6220-01-481-3827
NSN 5945-00-973-5793
NSN 6105-01-365-2634
NSN 5999-00-078-9890
NSN 5930-00-217-5801
NSN 2925-01-269-3861
NSN 5999-00-901-2161
NSN 6135-01-056-4609
NSN 5950-01-373-5297
NSN 6130-00-833-3133
NSN 5915-01-321-4794