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 5925-01-170-4019
NSN 6110-01-221-0483
NSN 6645-00-135-7480
NSN 6320-01-089-9086
NSN 6645-01-459-7715
NSN 5999-01-264-6587
NSN 5915-01-269-3874
NSN 5915-00-042-5613
NSN 5920-01-349-5554
NSN 7035-01-611-2610
NSN 6320-00-459-8973
NSN 5835-01-240-5022