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 5998-01-462-7052
NSN 6105-00-344-3251
NSN 7035-01-445-3563
NSN 6150-01-411-6299
NSN 5910-00-969-8072
NSN 5835-01-116-2369
NSN 6145-00-170-6872
NSN 5835-01-632-6627
NSN 6645-01-570-3215
NSN 6135-01-423-7502
NSN 6620-00-962-8699
NSN 2925-00-233-5644