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 6220-01-014-4052
NSN 5996-01-495-4331
NSN 5915-01-193-6298
NSN 6650-00-532-8125
NSN 6685-01-354-7618
NSN 5910-00-932-0629
NSN 6240-01-585-7753
NSN 6110-01-094-7870
NSN 5915-00-499-9054
NSN 5930-00-594-9442
NSN 5960-01-231-1450
NSN 5935-01-615-4955