Special Notice: DEPT OF DEFENSE is procuring AIRFRAME STRUCTURAL COMPONENTS (PSC code: 1560) for the DEPT OF THE AIR FORCE's FA8221 AFNWC PZBB office. The procurement includes FJ SPEED BRAKE items with NSN 1560-01-591-4396 and 1560-01-592-3322. These components are typically used for controlling the speed and braking of an aircraft.