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 5945-01-353-8622
NSN 6645-01-390-0814
NSN 6110-00-883-3505
NSN 5965-01-371-8031
NSN 5998-00-231-2780
NSN 6645-01-481-4418
NSN 4140-00-279-3148
NSN 5925-01-265-0832
NSN 5950-00-548-6733
NSN 6220-01-169-1613
NSN 5965-01-365-5813
NSN 5998-01-394-0366