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 6645-00-230-4396
NSN 6685-01-587-1469
NSN 5895-01-282-1131
NSN 5915-00-949-7206
NSN 5835-00-111-2953
NSN 7035-01-560-2623
NSN 7035-01-229-0941
NSN 6645-01-596-6077
NSN 6105-01-106-4649
NSN 6320-01-426-1324
NSN 5930-01-242-9918
NSN 6135-00-027-3914