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 5965-01-265-2980
NSN 6220-01-118-3641
NSN 5945-01-195-5875
NSN 6135-00-182-7008
NSN 5950-01-534-7890
NSN 6320-01-543-3238
NSN 6150-01-455-4639
NSN 5950-00-233-3560
NSN 5855-01-228-0942
NSN 5925-00-275-7599
NSN 5975-00-248-9330
NSN 6645-00-427-8889