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 5975-01-369-2294
NSN 6610-00-585-1524
NSN 5965-00-775-6496
NSN 5945-01-416-6438
NSN 5975-01-067-9134
NSN 5945-01-626-0491
NSN 4140-01-340-9198
NSN 6135-00-009-4100
NSN 5905-01-073-8064
NSN 5935-01-618-2162
NSN 5998-00-389-6851
NSN 6135-01-450-3781