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 6130-00-766-3331
NSN 6685-01-352-5665
NSN 7035-01-242-6496
NSN 6645-01-142-2416
NSN 2925-01-327-3069
NSN 5998-00-948-0343
NSN 5835-01-273-7674
NSN 5930-01-440-2490
NSN 5910-01-471-5859
NSN 6135-01-134-7222
NSN 6220-00-068-8750
NSN 6135-01-394-4160