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 6650-00-949-8653
NSN 5895-01-085-4318
NSN 6145-00-738-5601
NSN 6145-01-498-8478
NSN 5855-01-544-9778
NSN 6105-01-334-1442
NSN 5925-01-381-0614
NSN 6105-00-922-8057
NSN 6220-01-480-2929
NSN 5950-01-247-6501
NSN 6130-01-154-9825
NSN 7035-01-424-7019