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 7035-01-116-6223
NSN 5990-00-864-6513
NSN 6650-00-492-9503
NSN 6685-00-123-8369
NSN 6620-01-515-2790
NSN 5998-01-077-0725
NSN 5855-01-532-3606
NSN 6645-01-225-8106
NSN 5935-00-657-1527
NSN 5895-01-461-7070
NSN 5895-01-435-3835
NSN 6110-00-583-9821