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 5915-01-599-4159
NSN 5915-01-417-3123
NSN 7035-01-440-0659
NSN 5925-01-089-9791
NSN 5999-00-689-7815
NSN 5975-01-423-6812
NSN 6130-01-196-3796
NSN 5975-01-089-2609
NSN 5998-01-267-6132
NSN 5895-01-127-0232
NSN 5965-01-231-0261
NSN 5996-00-524-3384