These are pictures of 10 Russian snap hook hanger variations I have in my collection.
Top Row from left to right:
Canvas belt loop, pebble grain brown leather keeper strap, brass stud, flat D-ring, flat back snap hook, phosphated metal (came on modified early scabbard)
Natural tan leather belt loop and keeper strap, black painted steel stud, flat D-ring, flat back snap hook, phosphated metal
Reddish ersatz leather belt loop and keeper strap, black painted steel stud, flat D-ring, flat back snap hook, phosphated metal
Pebble grain brown leather belt loop and keeper strap, black painted steel stud, flat D-ring, flat back snap hook, phosphated metal
Middle Row from left to right:
White leather belt loop, white ersatz keeper strap, black painted steel stud, flat D-ring, flat back snap hook, phosphated metal (this hanger looks like they decided to install the keeper stud in backwards after they noticed the black stains on the strap)
Black leather belt loop and keeper strap, black painted steel stud, round D-ring, flat back snap hook, phosphated metal (came on Tula 6X4)
Pebble grain brown leather belt loop and keeper strap, black painted steel stud, round D-ring, flat back snap hook, phosphated metal
Brown smooth leather belt loop and keeper strap, brass stud, triangular flat D-ring, round back snap hook, black painted mount plate (came on a Tula 6X4. I also have one on my early 6X5 I just picked up.)
Bottom Row left to right:
Pebble grain black leather belt loop and keeper strap, black painted steel stud, round D-ring, flat back snap hook, phosphated metal (as found on black polymer 6X5 bayonets)
Pebble grain black through dyed leather belt loop and keeper strap, black painted steel stud, round D-ring, flat back snap hook, phosphated metal (as found on souvenir HB-5EXP. marked bayonets.)
MDI