Cops hunt for subway perv

A CREEPY straphanger is being hunted after masturbating in front of a woman on a Manhattan subway platform, cops said.

The 20-year-old victim sat on a bench at the 53rd St.-Seventh Ave. station just after 4 a.m. on Saturday when a man who was sitting next to her started pleasuring himself, cops said.

The woman snapped a quick photo (inset) of the suspect before she fled, according to police.

She then reported the incident to cops.

Police describe the suspect as 5-feet-1 and 200 pounds, with a goatee, brown eyes and short brown hair. He wore a blue shirt, tan slacks and black sneakers.

Anyone with information is asked to call Crime Stoppers at (800) 577- 8477.