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 6110-00-959-3386
NSN 6240-01-444-1673
NSN 5996-01-080-4110
NSN 5990-00-816-9289
NSN 5998-00-506-7445
NSN 5835-00-289-9080
NSN 5965-00-057-6944
NSN 5905-01-604-9810
NSN 6685-01-611-8992
NSN 5855-01-335-8907
NSN 5935-01-199-8934
NSN 6135-01-385-7276