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 6220-01-474-0033
NSN 7035-01-633-9537
NSN 5996-01-495-4331
NSN 5950-01-398-0694
NSN 6645-00-067-7070
NSN 6150-01-659-7158
NSN 5965-00-324-2428
NSN 6240-01-372-2039
NSN 6220-01-340-1908
NSN 6645-00-099-6913
NSN 5996-01-251-9518
NSN 6130-01-055-6846