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 5930-01-541-6715
NSN 6685-01-249-6055
NSN 5910-00-899-3797
NSN 6240-01-630-2702
NSN 5935-01-062-0705
NSN 5925-00-761-0105
NSN 6145-01-609-2291
NSN 5998-00-369-9114
NSN 5990-01-046-8530
NSN 7035-01-003-9142
NSN 6130-01-327-9874
NSN 5945-01-366-3123