RAF FAIRFORD, England, July 20 (Reuters) - The United

States Air Force said it had reached a deal with Boeing ( BA )

for the supply of E-7 Wedgetail airborne warning and control

aircraft and downplayed concerns that the company's internal

crisis would harm its ability to supply the Pentagon.

The provisional deal covers the rapid production of

prototypes as the Air Force phases out E-3 Sentry or AWACS

airborne warning and control aircraft, and follows reports of

disagreements over the price for the 737-based Wedgetail planes.

"We have reached agreement with (Boeing ( BA ))... We have got a

reasonable price point that we can afford," Secretary of the Air

Force Frank Kendall told reporters at the Royal International

Air Tattoo military air show in western England.

A formal contract will be finalised in August, he added.

It is the first major contract announcement since Boeing ( BA )

agreed earlier this month to plead guilty to a criminal fraud

conspiracy charge to resolve a U.S. Justice Department

investigation into 737 MAX fatal crashes over five years ago.

Experts have said the guilty plea, which is opposed by the

crash victims' families, potentially threatens the company's

ability to secure contracts from agencies such as the Defense

Department and NASA, although it could seek waivers.

Asked how the plea deal had affected the Pentagon's ability

to negotiate with Boeing ( BA ), Kendall said, "The short answer is it

has not; we are continuing to do business with Boeing ( BA )".

Under U.S. rules, the Pentagon has to assess whether any

supplier it does business with is a responsible company.

"We will be working in a coordinated fashion ... to

understand what implications there might be from the plea deal,

but I don't anticipate at this point that it is going to ...

lead to significant disruption of our contracting," Andrew

Hunter, assistant Air Force secretary for acquisition,

technology and logistics, told reporters.

Boeing ( BA ) is the Pentagon's second-largest contractor and is

widely said to be competing with Lockheed Martin ( LMT ) in a

strategically important contest to replace the F-22 fighter.

The latest agreement stems from efforts by the Air Force to

replace Cold War-era E-3s, whose distinctive rotating radar dome

allows crew to track targets and direct aircraft in a battle.

The transition between the two planes has been delayed amid

negotiations over price, raising some concerns in Congress about

gaps in capability.

"We are very glad to have an affordable basis for the rapid

prototyping program, which is the basis for the production

programme going forward," Hunter said.

Boeing ( BA ) welcomed the agreement, which provides a boost to its

defence business following a series of cost overruns and delays.

"We are focused on executing well and meeting the needs of

our customer," a spokesperson said.