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 6150-01-279-3497
NSN 5905-01-233-1469
NSN 6685-01-383-7499
NSN 6240-00-244-0483
NSN 2925-01-172-9209
NSN 6150-01-610-2786
NSN 5996-01-338-5256
NSN 6135-01-215-1245
NSN 6650-01-451-8461
NSN 5950-01-381-5610
NSN 5895-00-891-4498
NSN 5985-01-415-2225