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 5998-01-014-1008
NSN 5960-00-925-6922
NSN 5996-00-248-7061
NSN 5925-00-001-5977
NSN 6150-00-241-2184
NSN 6645-01-172-6838
NSN 5985-01-025-6051
NSN 5915-00-343-6814
NSN 5985-00-081-9142
NSN 5835-01-185-1102
NSN 5855-00-987-1171
NSN 6320-00-731-6134