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 6105-01-359-1463
NSN 5905-01-168-4616
NSN 5985-01-154-9195
NSN 6320-00-925-0558
NSN 5925-01-590-7079
NSN 6650-01-092-7743
NSN 5855-01-382-8725
NSN 5935-01-209-1830
NSN 5835-01-116-2369
NSN 7035-01-193-2667
NSN 6240-00-167-2467
NSN 6240-01-529-6624