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 7035-01-503-5517
NSN 5905-00-935-6954
NSN 5930-01-634-0659
NSN 5998-00-881-9781
NSN 6135-01-342-3859
NSN 5998-01-431-9240
NSN 5965-00-471-5018
NSN 5985-01-446-6868
NSN 2925-00-155-2100
NSN 5999-01-326-2437
NSN 5975-01-339-9109
NSN 5855-00-411-8688