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 5895-00-297-6689
NSN 6240-01-051-8699
NSN 6105-01-116-6428
NSN 6150-01-429-8022
NSN 6645-01-076-4655
NSN 5985-00-237-7321
NSN 6130-01-054-6126
NSN 5998-01-227-7354
NSN 6130-01-003-3930
NSN 6145-00-445-7839
NSN 5998-01-067-8951
NSN 6650-01-472-0143