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 6650-01-649-8144
NSN 5965-01-095-9767
NSN 5855-00-087-7833
NSN 6240-00-064-4064
NSN 5925-00-052-5874
NSN 6645-00-056-1580
NSN 6145-00-116-7810
NSN 5835-00-402-8387
NSN 5855-01-366-2429
NSN 5910-01-226-3582
NSN 5998-01-414-0592
NSN 5985-01-461-2445