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 5905-00-396-3047
NSN 5990-01-328-8225
NSN 6130-01-087-8258
NSN 5910-01-658-1958
NSN 5935-01-579-0262
NSN 5945-01-013-9311
NSN 5895-01-573-5917
NSN 5895-01-566-0956
NSN 5935-01-554-9218
NSN 2925-00-132-1280
NSN 5925-00-101-6837
NSN 6130-00-091-9335