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 6610-01-439-2651
NSN 5935-00-197-9463
NSN 4140-01-194-8291
NSN 5965-00-051-6434
NSN 6645-01-571-8578
NSN 7035-01-466-1577
NSN 5915-00-179-4623
NSN 6240-01-049-8934
NSN 5950-01-296-1510
NSN 6610-01-367-5110
NSN 5975-01-017-7726
NSN 5935-00-246-5280