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 5960-01-349-8791
NSN 5930-01-167-7144
NSN 2925-01-179-2648
NSN 5905-01-310-7629
NSN 5855-00-491-7079
NSN 6105-00-470-4764
NSN 5855-00-943-0685
NSN 5950-01-212-9660
NSN 6220-00-184-6179
NSN 7035-01-066-8308
NSN 5999-01-361-4686
NSN 5985-00-812-7868