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 5935-01-243-7452
NSN 6150-00-332-1297
NSN 6240-00-411-1140
NSN 5998-01-071-4181
NSN 6645-01-068-6524
NSN 6240-01-523-4241
NSN 6145-01-202-0224
NSN 5935-00-421-6252
NSN 6620-01-093-1383
NSN 6240-01-159-5043
NSN 6130-01-433-2215
NSN 5960-01-450-4693