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 5935-00-318-6388
NSN 6105-01-516-9936
NSN 6620-01-355-4339
NSN 6610-01-139-4713
NSN 6610-01-557-6908
NSN 5965-01-310-8943
NSN 5925-01-604-4008
NSN 5920-01-412-8415
NSN 6645-01-642-3637
NSN 5965-00-452-0967
NSN 5920-01-415-2878
NSN 5905-01-009-2546