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 5996-01-557-4160
NSN 5855-01-157-3093
NSN 5960-01-279-0985
NSN 6110-00-686-1530
NSN 6645-01-147-2089
NSN 6110-01-126-3997
NSN 5985-01-570-0751
NSN 5999-01-286-7805
NSN 5915-01-063-5908
NSN 7035-00-631-3782
NSN 5910-00-014-2318
NSN 5910-01-129-1195