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 5835-01-014-4574
NSN 6610-00-893-0893
NSN 5920-01-476-7729
NSN 5915-01-553-7288
NSN 5950-01-415-1563
NSN 5905-01-028-5685
NSN 6650-01-633-9147
NSN 5950-01-485-0246
NSN 5910-01-356-9251
NSN 5935-01-025-9172
NSN 5835-01-140-9306
NSN 6620-01-346-6575