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 5935-00-191-8049
NSN 5855-01-169-4275
NSN 5935-01-628-9706
NSN 6145-01-062-2568
NSN 5985-00-222-6066
NSN 5975-00-081-2171
NSN 6620-00-398-0320
NSN 6135-00-803-3012
NSN 5895-01-206-3931
NSN 5999-01-144-3042
NSN 5905-01-330-3775
NSN 5925-01-277-7066