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 5935-00-110-5535
NSN 5996-01-008-3791
NSN 5835-01-227-4752
NSN 5895-01-139-6622
NSN 5945-01-409-2718
NSN 6645-01-206-4888
NSN 6130-01-028-1308
NSN 7035-00-413-0992
NSN 5930-01-561-4229
NSN 6145-00-754-8372
NSN 6650-00-266-6808
NSN 5895-00-438-8477