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 6130-01-461-6397
NSN 7035-00-205-8739
NSN 5950-01-435-4405
NSN 5975-01-393-2358
NSN 6240-01-660-3503
NSN 2925-00-652-7383
NSN 7035-00-155-9513
NSN 5985-01-441-0521
NSN 5925-00-057-6762
NSN 5945-00-528-1920
NSN 6110-01-350-3449
NSN 6620-01-467-2111