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 6645-01-390-3442
NSN 6610-01-224-7247
NSN 6110-01-105-5172
NSN 5965-01-131-9778
NSN 6645-01-459-7788
NSN 6645-00-204-4100
NSN 2925-01-016-0876
NSN 5915-00-160-3834
NSN 6150-01-320-2660
NSN 7035-01-024-9511
NSN 6620-00-035-5813
NSN 7035-00-225-6499