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 7035-01-423-1755
NSN 6135-00-913-2062
NSN 5965-01-335-6630
NSN 6130-01-425-1977
NSN 5855-01-585-6619
NSN 7035-01-425-8063
NSN 5835-01-286-6499
NSN 6685-01-521-4284
NSN 5835-00-170-5238
NSN 6320-01-523-4954
NSN 5905-01-434-4641
NSN 6220-00-129-8130