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 6135-00-223-9563
NSN 5920-00-408-4423
NSN 6645-01-214-4550
NSN 5945-00-905-3997
NSN 6645-00-025-4771
NSN 5925-01-156-8708
NSN 5998-00-148-3775
NSN 6105-00-003-2069
NSN 6145-01-464-4228
NSN 5915-00-880-2193
NSN 5950-00-219-6537
NSN 5895-00-400-0230