A defense contractor who admitted selling defective replacement parts to the Pentagon was sentenced Friday to a harsher sentence than had been agreed upon in his plea bargain.

U.S. District Judge Howard Munson sentenced Reginald Knaub to 3 years and five months in prison and ordered him to pay $1.55 million in restitution to the Defense Department.Prosecutors said they asked for a harsher sentence than the 21/2 years originally agreed upon because the parts may have found themselves in equipment used in Operation Desert Shield.

Assistant U.S. Attorney Craig Benedict said Knaub sold the government 100,000 faulty parts over a seven-year period at a cost of nearly $2.5 million.

The original plea arrangement was made prior to Iraq's invasion of Kuwait.

Benedict said he was satisfied that Knaub received the maximum sentence and added he hopes the case will serve as a deterrent to other defense frauds.

Knaub's attorney Joseph Fahey said Knaub has always maintained what he did was wrong, adding his client is contrite.