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 5920-01-415-2878
NSN 6645-01-039-4259
NSN 5935-00-383-3535
NSN 6130-01-463-8672
NSN 5910-01-014-5488
NSN 5915-01-181-9018
NSN 5985-01-314-2057
NSN 6110-01-082-7806
NSN 6145-00-669-6795
NSN 5910-01-579-3434
NSN 6320-00-857-4073
NSN 5965-01-136-7970