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 5855-01-515-2135
NSN 6130-00-556-8851
NSN 6645-01-368-8284
NSN 5895-01-025-6125
NSN 5985-01-317-2916
NSN 5910-01-259-3582
NSN 5910-01-224-7609
NSN 5945-01-175-4544
NSN 5835-01-067-9271
NSN 5985-01-560-3481
NSN 6650-00-792-8577
NSN 6105-00-089-0232