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 5975-01-361-5134
NSN 6110-00-476-7186
NSN 6150-00-265-7799
NSN 5965-01-415-2898
NSN 6685-01-493-4883
NSN 6110-01-148-3609
NSN 6105-00-059-5357
NSN 5945-01-475-0436
NSN 5985-00-728-4621
NSN 6145-01-359-8028
NSN 6620-00-487-7316
NSN 6105-00-337-0904