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 5935-00-117-6345
NSN 6620-01-578-6562
NSN 2925-01-228-6554
NSN 6220-01-398-8937
NSN 5985-01-389-1927
NSN 6620-00-473-3692
NSN 6650-00-086-1571
NSN 5925-01-457-2091
NSN 5960-00-490-0138
NSN 6240-01-104-4494
NSN 6320-01-627-8295
NSN 7035-01-658-1623