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 6105-00-079-6436
NSN 6145-01-398-7451
NSN 6320-01-631-7828
NSN 5935-01-411-6917
NSN 5925-01-187-4640
NSN 5910-01-468-3388
NSN 6320-00-456-0836
NSN 5895-01-410-8742
NSN 5950-01-370-0313
NSN 6320-00-557-3079
NSN 5910-00-615-9975
NSN 5985-01-197-0548