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 5985-01-311-9178
NSN 5835-01-186-4961
NSN 6320-01-399-6177
NSN 5930-01-514-1770
NSN 5925-01-476-8727
NSN 5960-00-784-6103
NSN 6320-00-676-9387
NSN 5925-01-060-9523
NSN 5975-00-274-5720
NSN 5950-01-195-6739
NSN 6130-01-634-0603
NSN 6105-01-017-5713