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 5996-01-350-3345
NSN 5999-00-072-1854
NSN 6240-01-392-0458
NSN 6110-01-483-0639
NSN 5996-01-609-4129
NSN 6240-00-281-8417
NSN 6320-00-646-3311
NSN 6645-01-579-4247
NSN 5925-00-274-3195
NSN 2925-00-816-8765
NSN 6105-01-502-9273
NSN 6645-00-226-2270