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 6650-01-604-9073
NSN 5895-00-669-9946
NSN 6645-00-580-9605
NSN 5985-01-023-0618
NSN 6320-00-116-3658
NSN 5975-00-689-6396
NSN 5935-01-476-7311
NSN 5930-00-806-7492
NSN 6130-00-947-3710
NSN 5945-01-562-7216
NSN 5925-01-033-0457
NSN 6110-01-522-6086