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 5915-00-485-4973
NSN 6610-01-383-7419
NSN 5998-01-645-5237
NSN 5835-00-943-2763
NSN 6685-01-237-2562
NSN 5975-01-267-1790
NSN 6320-00-186-6452
NSN 6610-01-224-7247
NSN 5935-01-025-6677
NSN 5925-01-004-9293
NSN 5925-01-494-2417
NSN 6685-01-207-0666