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 5965-01-344-8592
NSN 5935-00-202-5808
NSN 5975-01-500-2490
NSN 6240-00-617-9599
NSN 2925-01-408-6205
NSN 5930-00-681-6825
NSN 5835-00-554-0399
NSN 5925-00-911-0593
NSN 6105-01-421-3193
NSN 6150-01-123-7612
NSN 6150-01-158-9433
NSN 5999-01-500-1238