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 6130-01-647-4909
NSN 5985-01-596-1181
NSN 2925-00-964-7128
NSN 6610-01-316-1830
NSN 6130-00-205-1714
NSN 5915-01-052-9746
NSN 7035-01-058-8728
NSN 5945-01-531-2088
NSN 5965-01-265-6814
NSN 5925-01-086-7424
NSN 6130-01-039-4392
NSN 5925-01-362-6654