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 6145-01-531-5958
NSN 5945-00-717-7122
NSN 5915-01-487-6454
NSN 5920-00-974-4381
NSN 6110-01-313-3767
NSN 6645-01-588-5591
NSN 5996-00-481-1486
NSN 6105-01-346-6367
NSN 7035-00-978-7837
NSN 6135-01-422-1440
NSN 5996-01-025-3134
NSN 5855-00-221-9435