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 5915-00-244-9805
NSN 5835-01-108-4980
NSN 5835-01-453-3074
NSN 6685-00-246-5349
NSN 6650-01-268-9702
NSN 5950-00-767-5290
NSN 6645-01-501-0576
NSN 5855-01-539-0639
NSN 5925-01-290-5630
NSN 6110-01-185-5040
NSN 5895-01-444-6086
NSN 5930-01-014-7143