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 5965-00-714-3588
NSN 5975-00-734-4606
NSN 5910-01-235-4086
NSN 7035-01-504-3462
NSN 6135-00-027-3914
NSN 5975-01-463-2881
NSN 5960-01-641-5493
NSN 5910-01-533-4073
NSN 5945-01-563-7956
NSN 5905-01-322-5490
NSN 6620-01-263-6697
NSN 6620-01-539-5188