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 6145-01-338-5671
NSN 5996-01-473-2024
NSN 5950-01-424-3233
NSN 5990-01-320-1412
NSN 5895-01-141-6031
NSN 5960-01-292-0027
NSN 5930-00-297-8848
NSN 5985-01-424-0573
NSN 5910-01-443-3016
NSN 2925-00-640-8611
NSN 5835-00-364-0816
NSN 5965-00-023-0944