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 5925-01-535-1612
NSN 5835-01-080-3678
NSN 5855-00-688-9954
NSN 6105-00-078-7588
NSN 5925-01-206-5484
NSN 6110-00-596-5011
NSN 5915-01-426-4849
NSN 5835-01-301-0022
NSN 5960-01-586-5235
NSN 6645-00-557-0322
NSN 4140-01-494-8957
NSN 7035-01-254-3606