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 5905-00-248-6133
NSN 2925-01-645-2948
NSN 6135-00-243-8330
NSN 5975-01-415-0918
NSN 6110-01-025-9773
NSN 6240-00-495-6763
NSN 6620-01-185-6391
NSN 6110-01-499-3365
NSN 6130-00-279-8552
NSN 5945-01-209-9167
NSN 5950-01-361-8863
NSN 7035-01-295-1609