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 6610-00-664-2190
NSN 6220-01-005-2134
NSN 5925-01-627-8274
NSN 5925-01-499-6876
NSN 6610-01-448-8904
NSN 6145-00-476-5667
NSN 6150-01-032-4161
NSN 2925-01-624-2965
NSN 6685-01-381-6077
NSN 5950-00-167-5035
NSN 5998-01-128-9313
NSN 5965-01-058-1076