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 5950-01-515-6842
NSN 5990-00-268-9089
NSN 6130-01-124-6352
NSN 5910-01-486-2155
NSN 5905-00-561-4654
NSN 5935-01-623-5089
NSN 6610-00-126-7425
NSN 6135-01-187-4382
NSN 6145-00-224-5245
NSN 6110-00-202-2990
NSN 5990-00-350-2352
NSN 7035-01-128-7431