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 6645-00-479-9334
NSN 5910-01-227-6855
NSN 5996-01-483-1858
NSN 2925-00-596-9775
NSN 5996-01-165-9344
NSN 5855-01-157-5505
NSN 5910-01-464-3734
NSN 5915-00-088-7456
NSN 6645-00-498-6869
NSN 7035-01-611-5506
NSN 6685-01-035-0566
NSN 7035-01-063-8753