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 6645-00-583-0066
NSN 6130-01-543-1227
NSN 5855-00-014-5008
NSN 5950-00-840-6537
NSN 6620-01-089-4416
NSN 5930-00-636-8888
NSN 5925-01-634-0664
NSN 6130-00-141-0292
NSN 5915-01-173-5455
NSN 6135-00-008-5345
NSN 6145-01-562-7106
NSN 6620-01-463-1373