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 6320-00-583-3104
NSN 5960-01-383-6262
NSN 5910-01-167-8473
NSN 6645-01-413-8003
NSN 5998-01-363-3260
NSN 6105-00-089-6824
NSN 6110-01-163-6122
NSN 5950-00-068-6841
NSN 2925-01-364-7926
NSN 5996-00-413-0878
NSN 7035-00-553-6951
NSN 5895-01-275-7467