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 6105-00-807-8986
NSN 6130-01-184-3987
NSN 5910-01-187-7359
NSN 5905-01-142-3362
NSN 7035-00-300-3208
NSN 5935-01-423-0547
NSN 5990-00-524-2293
NSN 6650-00-534-5191
NSN 5975-01-085-1081
NSN 5915-00-918-0511
NSN 6145-01-026-5519
NSN 5999-01-417-2834