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 5998-01-076-5412
NSN 5965-01-525-7513
NSN 6650-01-281-4651
NSN 6145-01-347-0320
NSN 5895-00-869-1577
NSN 5990-01-468-1292
NSN 6645-01-259-7142
NSN 6620-01-252-6691
NSN 5996-01-576-9852
NSN 6650-01-031-5243
NSN 5945-01-612-6848
NSN 5975-01-508-3731