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 6110-01-101-1181
NSN 2925-01-574-7119
NSN 6320-01-378-6191
NSN 5990-01-516-9665
NSN 5950-01-559-0494
NSN 6320-01-347-2638
NSN 5945-01-414-8720
NSN 5965-01-105-4959
NSN 6320-00-164-4087
NSN 5985-00-448-0898
NSN 6320-01-380-0561
NSN 6320-01-232-4664