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 6320-01-215-2284
NSN 5985-00-186-8755
NSN 5925-01-353-0006
NSN 5930-01-115-1087
NSN 5960-00-759-2534
NSN 6645-00-057-3499
NSN 5915-01-108-4552
NSN 5985-01-462-0144
NSN 5950-00-359-9228
NSN 6135-00-180-5125
NSN 5985-01-646-1108
NSN 5990-01-288-7393