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 5855-00-586-6255
NSN 6150-01-345-7413
NSN 6685-00-595-5376
NSN 5835-00-987-9341
NSN 6145-01-420-6132
NSN 5985-01-441-3125
NSN 5895-01-114-8515
NSN 5985-01-099-6973
NSN 6130-01-543-5567
NSN 5996-01-223-1273
NSN 5920-00-515-3617
NSN 5925-01-233-6571