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 6645-00-019-0554
NSN 5950-00-443-9522
NSN 5895-01-557-8071
NSN 6685-00-594-1733
NSN 6320-00-242-3300
NSN 5975-01-093-9541
NSN 6145-01-239-3638
NSN 6685-00-899-4890
NSN 6610-01-656-4093
NSN 5996-01-580-0582
NSN 6150-01-566-7410
NSN 5835-01-632-6627