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 6110-01-605-1545
NSN 6685-01-521-3127
NSN 6650-01-132-2697
NSN 6320-01-145-9013
NSN 5945-01-435-7148
NSN 5950-00-073-5189
NSN 5990-01-349-8132
NSN 5920-01-576-3663
NSN 5930-00-101-2435
NSN 7035-01-627-8530
NSN 5996-01-307-8690
NSN 5915-00-067-5756