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 6110-01-175-1591
NSN 6105-01-307-7428
NSN 7035-01-068-5077
NSN 2925-00-546-3129
NSN 6320-01-476-7702
NSN 5950-01-561-2724
NSN 5855-00-247-7219
NSN 6150-00-827-7042
NSN 6240-00-005-4869
NSN 5998-00-801-7925
NSN 5965-00-722-7574
NSN 5855-01-122-3125