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 2925-00-717-2308
NSN 5920-01-473-2349
NSN 7035-01-445-3563
NSN 5985-00-652-1334
NSN 6220-00-390-1170
NSN 5935-00-111-0509
NSN 5925-00-500-6743
NSN 6650-01-610-5017
NSN 6610-01-287-8559
NSN 5945-00-872-6793
NSN 6645-01-004-0803
NSN 5965-00-581-5577