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 6105-01-007-9550
NSN 7035-01-500-8606
NSN 6645-01-238-2718
NSN 6135-01-036-3495
NSN 5915-00-757-9875
NSN 6105-00-501-7681
NSN 5935-00-445-7902
NSN 5905-00-789-0621
NSN 5905-01-603-2424
NSN 6135-00-234-6508
NSN 5996-00-369-5299
NSN 6645-01-122-3803