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 5835-00-074-3700
NSN 6645-01-620-4837
NSN 6135-01-300-8455
NSN 6610-01-514-7755
NSN 5990-01-558-4536
NSN 5910-00-197-8920
NSN 6645-00-462-7072
NSN 5925-01-367-4425
NSN 6620-01-145-7762
NSN 2925-01-008-1552
NSN 6105-01-059-2307
NSN 5930-00-596-9276