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 6110-01-239-7667
NSN 5960-01-425-1454
NSN 6145-00-261-8202
NSN 6685-01-589-1769
NSN 5945-01-243-9473
NSN 6240-00-433-2707
NSN 5920-00-946-9147
NSN 6145-00-105-9457
NSN 5895-00-904-2640
NSN 5996-00-944-9185
NSN 6130-01-440-9254
NSN 5835-00-943-2763