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 7035-01-545-6402
NSN 6110-01-038-2028
NSN 5950-01-276-1174
NSN 5925-01-308-1458
NSN 7035-00-365-3989
NSN 6650-00-144-4555
NSN 5985-01-492-5943
NSN 5985-00-422-4978
NSN 5935-00-444-6172
NSN 2925-01-015-2354
NSN 5965-00-417-8182
NSN 5990-01-595-9441