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 5935-00-391-6275
NSN 6620-00-827-1611
NSN 5915-00-170-6775
NSN 5835-01-388-4616
NSN 6150-01-060-6248
NSN 5985-01-391-7122
NSN 4140-01-555-8190
NSN 6220-00-001-7006
NSN 6220-01-476-9371
NSN 6610-01-025-4718
NSN 5910-01-433-5794
NSN 5855-00-494-9581