DDG Stern Tube Shaft Seal Notice ID:N6449826R0001 DDG Stern Tube Shaft Seal Department/Ind.Agency Subtier Office DEPT OF DEFENSE DEPT OF THE NAVY NSWC PHILADELPHIA DIV NAICS 339991 - Gasket, Packing, and Sealing Device Manufacturing PSC MOD OF SHIP & MARINE EQ Data sourced from SAM.gov. View Official Posting »