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 5945-00-016-8385
NSN 5985-01-378-6823
NSN 5895-00-554-4573
NSN 6145-01-142-2234
NSN 5945-01-228-5145
NSN 6220-00-386-0997
NSN 5835-00-816-0394
NSN 5985-01-521-4345
NSN 5965-01-334-8021
NSN 5895-00-484-1496
NSN 6645-00-514-4017
NSN 7035-01-101-3991