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 6645-00-171-9639
NSN 5996-01-602-5655
NSN 7035-01-210-5111
NSN 6105-01-497-1459
NSN 6685-00-108-6374
NSN 6610-00-367-9603
NSN 7035-01-315-9754
NSN 5998-00-942-1300
NSN 6105-01-516-7145
NSN 5965-01-164-0561
NSN 5920-01-303-6841
NSN 6135-01-084-1609