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 5905-01-594-1333
NSN 6105-01-519-8003
NSN 5910-00-728-3142
NSN 6610-00-122-6625
NSN 5999-01-287-9782
NSN 6620-01-205-6608
NSN 5925-01-549-5450
NSN 6110-00-831-3727
NSN 5998-00-297-2431
NSN 5855-01-417-3250
NSN 5985-01-344-7751
NSN 6320-01-209-0952