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 5950-01-388-0860
NSN 5905-01-157-8275
NSN 6685-01-411-2717
NSN 5998-01-350-2491
NSN 5910-01-536-9965
NSN 2925-00-720-3948
NSN 5998-00-529-8635
NSN 5930-00-683-2104
NSN 6130-01-335-0437
NSN 6150-00-270-1001
NSN 5910-01-265-0816
NSN 5915-01-027-1407