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 6110-01-471-4440
NSN 5895-00-872-0399
NSN 5996-01-075-5184
NSN 5950-01-063-7875
NSN 6130-01-512-1653
NSN 2925-01-041-8201
NSN 5965-00-285-0745
NSN 6685-01-280-5181
NSN 7035-00-753-0695
NSN 6645-01-443-4854
NSN 5990-01-255-7387
NSN 6645-01-318-1874