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 6105-00-452-3855
NSN 5935-01-142-1626
NSN 6620-01-365-1499
NSN 6645-01-200-5289
NSN 2925-01-302-8591
NSN 6240-00-898-6601
NSN 6685-01-129-3129
NSN 5855-00-610-4052
NSN 6135-01-397-2170
NSN 5895-01-115-2343
NSN 5925-00-374-4852
NSN 2925-01-255-3534