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 6130-01-444-9586
NSN 5999-00-627-5985
NSN 5915-00-172-6958
NSN 5910-01-512-8782
NSN 6150-01-116-6236
NSN 5960-00-579-0298
NSN 6620-01-034-4539
NSN 6105-01-183-3135
NSN 5945-01-615-0388
NSN 6240-01-330-2445
NSN 6645-01-159-1489
NSN 5915-01-201-5575