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 5925-00-772-8168
NSN 5950-01-364-3112
NSN 5945-00-439-6199
NSN 5935-00-091-9550
NSN 6145-01-509-1059
NSN 5998-01-095-7589
NSN 5965-01-502-8850
NSN 5910-00-187-0016
NSN 6130-01-523-6982
NSN 5915-00-217-6517
NSN 5998-00-890-3375
NSN 6105-00-407-9048