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 5960-01-462-6267
NSN 5935-01-109-7630
NSN 6685-00-530-7509
NSN 5910-01-582-2917
NSN 2925-00-620-7757
NSN 5975-01-617-2472
NSN 5985-00-816-6150
NSN 5985-01-642-9989
NSN 6150-01-643-5037
NSN 6620-00-952-4278
NSN 5998-01-368-1500
NSN 6645-00-801-0950