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 5990-01-367-9168
NSN 5960-00-273-3058
NSN 7035-00-731-8729
NSN 6685-01-451-4796
NSN 5835-00-711-3371
NSN 5915-01-615-1053
NSN 6620-00-531-6057
NSN 6240-01-375-3571
NSN 5930-01-100-2100
NSN 5965-00-372-2537
NSN 6220-01-292-0980
NSN 5930-00-616-1861