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 5855-00-256-5562
NSN 6105-01-099-6184
NSN 6145-01-363-2925
NSN 5835-01-566-5462
NSN 5965-00-518-0958
NSN 6320-01-444-6640
NSN 5990-00-915-4531
NSN 6610-01-266-3447
NSN 5910-01-450-2599
NSN 6105-01-547-0294
NSN 7035-01-487-6481
NSN 6650-00-658-9627