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 6130-01-298-1573
NSN 5925-01-623-9403
NSN 6645-00-130-8464
NSN 6130-01-196-4110
NSN 5998-00-284-3804
NSN 5960-00-525-1898
NSN 5950-01-371-1296
NSN 5895-01-079-6541
NSN 5930-00-194-4938
NSN 6145-00-837-5977
NSN 5960-00-238-3830
NSN 6105-01-459-1179