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 6220-01-313-9583
NSN 5915-01-398-1860
NSN 5895-01-134-6780
NSN 6320-00-593-0379
NSN 5895-00-862-2489
NSN 5910-01-120-0872
NSN 5965-01-337-1217
NSN 6130-01-387-5490
NSN 5945-00-966-0383
NSN 7035-01-561-4167
NSN 6620-01-595-4691
NSN 5965-01-384-7670