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 6110-01-233-0292
NSN 5985-01-188-6464
NSN 5999-01-433-3536
NSN 6645-01-539-5922
NSN 5999-01-505-2628
NSN 7035-00-946-2642
NSN 7035-01-150-1917
NSN 6685-00-509-2380
NSN 6610-01-432-5144
NSN 5975-01-425-7513
NSN 5910-00-728-0271
NSN 6130-00-876-2511