turn the water meter off.
open the leaking hose bib to let the pressure off the system
remove the screw holding the handle on the stem
with a crescent wrench. unscrew the brass nut below the handle
pull the stem
on the bottom of the stem is a phillips head screw
remove screw
under the screw is a ''bib washer''
take the stem and the washer to a plumbing supply house
NOT a orange big box store
2 entrance doors..showroom and counter sales
go into counter sales. the guys leaning on the water cooler and coffee pot are plumbers
say hello. they look mean, but will not bite
hand the stem to the guy behind the counter and ask him to give you a bib washer that fits
tell the plumbers bye as you leave
stop by the hardware store on the way home and buy some
https://www.acehardware.com/departm...nts/Plasters&gclid=CJf7g8zS0OQCFYkCgQod6rEMvQ
after you finish with the hose bib, patch the hole behind that hose bib