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 5895-01-621-3965
NSN 5855-01-033-1375
NSN 5895-01-237-1619
NSN 6240-01-220-6066
NSN 5965-01-456-6622
NSN 6685-01-443-3575
NSN 5945-00-993-5730
NSN 7035-01-462-1957
NSN 5996-00-135-5756
NSN 6105-00-755-7087
NSN 6150-00-116-0568
NSN 5950-01-249-5930