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 5999-01-265-8592
NSN 5925-00-932-3027
NSN 5935-01-357-6533
NSN 6145-01-422-1830
NSN 5915-01-458-3368
NSN 4140-01-326-5555
NSN 6150-01-603-7757
NSN 6650-00-555-1061
NSN 5905-01-449-4593
NSN 5915-01-463-2465
NSN 6320-01-052-2118
NSN 5925-01-589-7612