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 6650-01-177-4398
NSN 5965-01-129-6501
NSN 5985-01-501-0003
NSN 5855-00-688-9954
NSN 6150-00-310-8531
NSN 5895-01-525-8189
NSN 6150-00-081-1786
NSN 6610-00-851-8727
NSN 6220-01-141-8200
NSN 6105-00-765-5644
NSN 6150-00-189-0292
NSN 6145-00-399-5201