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 6685-01-205-3296
NSN 7035-01-289-4022
NSN 5965-00-689-1545
NSN 6105-01-335-3182
NSN 5985-00-254-6402
NSN 6135-01-100-3593
NSN 5999-01-592-7317
NSN 5915-01-076-5754
NSN 5910-01-308-0294
NSN 6685-01-356-0983
NSN 6685-00-805-9109
NSN 5930-01-318-2403