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 5930-01-415-6241
NSN 6320-01-392-6922
NSN 5950-01-439-9543
NSN 5960-01-110-6326
NSN 6320-00-025-9910
NSN 6130-01-392-0596
NSN 6145-01-226-9662
NSN 5960-01-450-8539
NSN 6150-00-518-1402
NSN 5925-00-423-2791
NSN 6645-00-904-2754
NSN 5950-01-605-2823