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 5950-01-311-4747
NSN 6685-01-139-7388
NSN 6145-01-167-1107
NSN 5930-01-443-1518
NSN 6130-00-849-8258
NSN 5835-01-383-1313
NSN 6320-00-468-8421
NSN 5835-00-111-3419
NSN 5935-01-514-2850
NSN 5905-01-089-7055
NSN 6610-01-590-7222
NSN 6610-01-478-5325