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 5835-00-401-8655
NSN 6145-01-472-2228
NSN 5945-00-401-6275
NSN 5985-01-392-0926
NSN 6620-01-084-5112
NSN 2925-01-197-7864
NSN 5905-01-505-0699
NSN 5985-01-361-2386
NSN 6620-00-193-9503
NSN 6240-00-763-4895
NSN 5985-00-186-8755
NSN 7035-01-062-1692