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 5855-00-357-1158
NSN 5905-01-237-2582
NSN 5910-01-128-5575
NSN 6685-00-322-6656
NSN 5920-01-120-9088
NSN 5925-01-399-6777
NSN 5965-01-360-0454
NSN 6240-01-123-4998
NSN 6145-01-189-8561
NSN 2925-00-096-5526
NSN 6645-01-044-6376
NSN 4140-00-078-9357