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 6130-01-327-4594
NSN 6320-01-384-3850
NSN 5835-01-036-4951
NSN 5925-01-501-0727
NSN 5945-01-168-3477
NSN 6610-00-194-0676
NSN 6105-00-197-8671
NSN 6105-00-411-3080
NSN 6145-01-265-3807
NSN 5996-00-182-7627
NSN 6240-01-100-4158
NSN 6220-01-634-0660