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 6610-01-246-4164
NSN 6150-01-254-3625
NSN 5996-01-234-9156
NSN 5925-01-442-8589
NSN 6685-00-295-0824
NSN 6620-01-014-6913
NSN 5965-00-043-3463
NSN 6220-01-181-7117
NSN 5935-01-281-8424
NSN 5915-00-161-3158
NSN 6220-01-433-0456
NSN 6130-01-439-0637