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 5915-01-107-5554
NSN 5835-00-213-9811
NSN 4140-00-758-0311
NSN 6145-01-651-7976
NSN 6240-00-089-8364
NSN 5996-00-959-0240
NSN 5910-01-152-8966
NSN 5920-00-498-1392
NSN 6645-01-406-0688
NSN 6685-01-294-1157
NSN 5935-01-445-6323
NSN 5920-01-035-5456