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 5835-00-341-5441
NSN 7035-00-018-0350
NSN 6620-01-487-8735
NSN 6685-01-064-6518
NSN 5835-01-559-3824
NSN 6135-01-400-2947
NSN 2925-01-004-1683
NSN 5910-00-939-2401
NSN 4140-00-004-3668
NSN 5835-00-373-2671
NSN 5915-01-448-8578
NSN 5945-01-056-4142