Feb 18 (Reuters) - A large fire broke out at a

Pennsylvania factory that makes fasteners for aircrafts, but no

injuries were reported, authorities said on Tuesday.

The fire was reported at a commercial building of SPS

Technologies in Jenkintown, Pennsylvania, according to the

police.

The Abington Township Police Department said there was an

explosion within the building and flames could be seen inside

the warehouse structure, citing statements from witnesses.

One industry source said the fire at SPS is significant for

the aerospace supply chain since the company is an important

producer of fasteners for aircraft, including Boeing's ( BA ) 787.

Supply chain challenges have weighed on efforts by Boeing ( BA ) and

rival Airbus to ramp up plane production to meet strong airline

demand.

SPS Technologies, which is part of Berkshire Hathaway ( BRK/A )-owned

Precision Castparts, makes fasteners and other parts for the

aerospace and automotive industries, according to its LinkedIn

page.

Precision Castparts did not immediately respond to a Reuters

request for a comment.

Police added that a said shelter-in-place order was in

effect for nearby areas.

(Reporting by Angela Christy in Bengaluru and Allison Lampert in

Montreal; Editing by Chizu Nomiyama )