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 6110-01-389-6208
NSN 5985-01-273-0938
NSN 5935-01-569-5584
NSN 5925-00-539-8372
NSN 5999-01-509-9011
NSN 6620-01-534-7180
NSN 2925-01-265-2853
NSN 6685-01-578-9035
NSN 5835-00-752-6065
NSN 7035-01-633-9537
NSN 5990-01-654-6203
NSN 5990-01-024-9659