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 5915-00-866-6586
NSN 5835-01-412-0344
NSN 6620-01-536-7799
NSN 5945-01-472-2099
NSN 6645-00-408-3537
NSN 5990-00-389-0554
NSN 2925-00-789-1106
NSN 5945-00-964-8677
NSN 5925-01-088-6863
NSN 5975-01-102-1589
NSN 5835-01-100-3265
NSN 5935-01-463-3480