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 5975-00-644-4972
NSN 2925-00-066-9700
NSN 5925-01-239-2040
NSN 5895-01-026-7563
NSN 4140-00-592-3318
NSN 5965-00-004-6371
NSN 4140-01-165-0566
NSN 5996-00-284-9711
NSN 2925-00-814-8745
NSN 6610-01-650-6364
NSN 5910-00-456-0685
NSN 5960-00-083-2793