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 6645-00-050-3738
NSN 5975-01-170-5633
NSN 7035-00-275-5604
NSN 6610-00-025-1878
NSN 5945-01-582-4788
NSN 6620-01-537-1813
NSN 6105-01-019-3400
NSN 5925-01-224-1758
NSN 5925-01-091-1253
NSN 5960-01-192-7710
NSN 5855-00-310-2740
NSN 5935-00-733-9216