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 6220-01-572-2681
NSN 6610-00-137-6532
NSN 5975-00-003-2787
NSN 6145-00-104-7789
NSN 5965-01-063-3442
NSN 6645-00-406-8114
NSN 5920-01-453-7523
NSN 6610-00-277-7206
NSN 6320-00-377-5683
NSN 6130-00-651-4672
NSN 6105-01-470-0550
NSN 6610-01-480-0586