Item must comply with requirements of defense supply center philadelphia production standard no. Po0108nrp
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 6105-01-590-3278
NSN 5910-00-342-4338
NSN 6135-01-045-1504
NSN 6135-01-036-3495
NSN 5855-01-452-8512
NSN 5960-00-740-7285
NSN 5950-00-699-6931
NSN 6620-01-144-8609
NSN 6105-01-102-0009
NSN 6145-01-469-8792
NSN 6320-00-483-0451
NSN 5999-01-558-4781