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 6685-00-883-1905
NSN 5960-01-059-6300
NSN 7035-01-632-0011
NSN 6620-01-387-7645
NSN 5950-00-519-7343
NSN 5920-00-283-1321
NSN 6620-00-862-5567
NSN 5935-01-423-0553
NSN 6145-00-419-7813
NSN 5996-01-476-7550
NSN 5998-01-442-0889
NSN 5996-01-501-8729