Incedal’s friend, Rarmour-Bouhadjar, who admitted to also having a copy of the bomb-making guide, was jailed for three years.
"The potential for such bombs to cause death, injury and destruction are obvious," the BBC quoted Mr Justice Nicol as saying.
Twenty-seven-year-old Incedal was first arrested in 2013 and convicted of possessing a bomb-making manual. Last week, in a retrial, Incedal was found not guilty of plotting a “Mumbai-style” terror attack, targeting high numbers of people using Kalashnikov rifle, or an attack against high-profile individuals, such as former British Prime Minister Tony Blair.
Journalists were banned from reporting from the courtroom, thus few details on the case are available. Reportedly, after Incedal's arrest, police officers searched his car and found a piece of paper with Tony Blair's address.
