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 5945-00-265-1762
NSN 5965-00-147-3070
NSN 6135-01-657-7116
NSN 5975-01-458-9259
NSN 5930-01-098-7439
NSN 5985-01-604-8282
NSN 6135-01-222-5464
NSN 5905-01-366-1110
NSN 6240-01-237-7454
NSN 5975-01-471-5921
NSN 5945-00-269-5375
NSN 6620-01-114-9549