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 5996-00-202-6576
NSN 7035-01-420-5404
NSN 5950-00-529-0599
NSN 5915-01-296-1872
NSN 5950-01-207-0929
NSN 6320-01-006-6138
NSN 5950-01-475-9727
NSN 5985-01-089-1426
NSN 5855-01-384-4914
NSN 6240-00-306-9562
NSN 4140-00-093-7679
NSN 5920-01-145-5362