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 6110-01-167-3834
NSN 5999-01-044-2586
NSN 6135-01-154-3526
NSN 6320-00-174-1362
NSN 6610-00-198-6870
NSN 6645-00-472-4048
NSN 5915-01-391-1114
NSN 2925-01-252-8049
NSN 5998-01-466-9700
NSN 5965-01-050-8447
NSN 7035-00-408-8170
NSN 5835-00-759-1109