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 6105-00-890-4982
NSN 6145-00-255-7696
NSN 5950-01-441-8711
NSN 6220-01-443-3031
NSN 6610-01-426-5090
NSN 6240-01-132-1634
NSN 2925-00-343-3235
NSN 5910-01-145-5454
NSN 6320-01-493-4472
NSN 6320-00-483-0451
NSN 6110-01-129-6924
NSN 6220-01-306-2428