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 6685-01-125-9489
NSN 5950-01-535-0099
NSN 5960-01-553-4557
NSN 5910-01-526-6835
NSN 5905-01-038-1361
NSN 5835-01-332-2867
NSN 5960-01-589-6846
NSN 5920-00-326-9901
NSN 5905-01-016-2350
NSN 5998-00-809-3566
NSN 6150-00-919-1601
NSN 5996-01-490-3211