Item must comply with requirements of defense supply center philadelphia production standard no. Po0127nrp
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 5998-01-004-9745
NSN 7035-00-541-8516
NSN 5990-01-626-2818
NSN 5925-00-840-7058
NSN 5910-00-467-2754
NSN 5950-01-237-2573
NSN 4140-01-505-7541
NSN 5925-01-650-1747
NSN 5925-01-467-9910
NSN 6645-01-210-5649
NSN 5945-00-990-5566
NSN 6645-00-510-6643