Adil Rehman, aged 19, of Victoria Street, Wolverton, was sentenced at Huntingdon Crown Court after being found guilty by a jury.
The sentencing relates to an incident in Aylesbury Street, Wolverton, on Tuesday 15 July 2008, when a vehicle was stopped and searched by police and a small amount of potentially explosive substances were found.
David Crosby, aged 31, from Wainers Croft, Greenleys, was sentenced to two years in prison for the same offence on 26 February.
