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 6240-01-397-8713
NSN 5855-01-199-2046
NSN 5915-01-198-6265
NSN 6645-01-211-6502
NSN 5925-00-284-3726
NSN 6650-01-437-9557
NSN 7035-01-644-7759
NSN 6240-00-435-0433
NSN 5835-01-623-3328
NSN 5965-00-485-9575
NSN 6110-00-172-4340
NSN 5935-01-056-5135