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 5965-00-539-7778
NSN 7035-01-626-5358
NSN 6610-00-200-8832
NSN 6645-01-379-7725
NSN 6150-01-539-0159
NSN 5985-00-456-2228
NSN 6645-01-633-1852
NSN 5945-00-648-0552
NSN 6105-00-832-4507
NSN 5998-01-458-4611
NSN 6150-01-246-9022
NSN 5950-01-222-7521