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 6110-01-367-0441
NSN 7035-01-200-4751
NSN 5905-01-295-5716
NSN 6130-00-816-4815
NSN 5855-01-514-9387
NSN 5935-01-550-2767
NSN 5930-01-312-7556
NSN 6610-01-255-4544
NSN 5855-01-455-3317
NSN 5895-00-596-8678
NSN 5985-01-157-0690
NSN 6105-01-514-2294