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 5925-01-585-8093
NSN 6320-01-103-6218
NSN 5910-01-446-4666
NSN 5930-00-188-0131
NSN 6645-01-145-7357
NSN 5950-01-406-5577
NSN 5935-01-645-5096
NSN 5945-01-209-2983
NSN 5915-00-919-1762
NSN 5905-00-157-9823
NSN 7035-01-160-4423
NSN 2925-01-633-4048