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 5905-01-044-7215
NSN 2925-01-448-2880
NSN 6110-00-594-7640
NSN 6685-00-164-7014
NSN 6240-01-513-5832
NSN 5905-00-967-4361
NSN 5855-01-167-2162
NSN 5935-00-686-9972
NSN 6320-00-456-2092
NSN 5910-01-174-7719
NSN 6320-01-514-6141
NSN 5925-00-574-4362