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 5910-01-386-5169
NSN 7035-01-029-7221
NSN 5915-00-318-8872
NSN 6645-01-380-6111
NSN 5895-01-382-2092
NSN 5945-00-528-1920
NSN 5905-00-369-1477
NSN 5945-00-284-7312
NSN 5975-00-392-2890
NSN 5996-01-076-7374
NSN 7035-01-127-0147
NSN 5965-01-322-8136