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 5895-00-432-7934
NSN 7035-01-290-9770
NSN 5905-00-409-5530
NSN 5925-00-446-2464
NSN 5965-01-043-9357
NSN 5999-00-740-6078
NSN 6610-00-420-8475
NSN 4140-00-084-3358
NSN 5905-01-517-5081
NSN 2925-01-146-0278
NSN 4140-01-422-4431
NSN 6620-01-334-8938