SCOTTSDALE, Ariz. — Much as a particularly careful person might wear both a belt and suspenders to keep his or her pants from falling down, Brian Cashman has taken every possible precaution in case he finds a taker for Brian McCann.

Not only has the Yankees’ general manager opened a dialogue with McCann’s agent, B.B. Abbott, concerning a trade of the veteran catcher, but he also has reached out to potential designated-hitter replacements on the free-agent market. Among those, The Post has learned, is Kendrys Morales.

The Yankees also intend to reach out, Cashman said, to the representative for free-agent starting pitcher Rich Hill, who revived his career the last two seasons and could get as much as $50 million over three years as he enters his age-37 season.

Morales, 33, also has received interest from the Red Sox and Blue Jays, both of whom have openings at their DH spots due to the retirement of David Ortiz and free agency of Edwin Encarnacion, respectively. With the Royals in 2016, Morales put together a solid .263/.327/.468 slash line with 30 home runs in 158 games, although that marked an overall drop from his .290/.362/.485 with 22 homers in 158 games for Kansas City in 2015.

Other free-agent DHs include Carlos Beltran, whom the Yankees traded to Texas on Aug 1; Encarnacion, whose high asking price ($25 million a year for five years) clashes with the Yankees’ desire to get under the luxury-tax threshold a year from now; and major league home-run leader Mark Trumbo.

For now, Cashman said Tuesday at MLB’s General Managers’ Meetings, McCann is the Yankees’ primary DH, having yielded his everyday catching job to thunderous rookie Gary Sanchez. And when McCann catches — he served as CC Sabathia’s personal receiver once Sanchez arrived for good — then Sanchez will DH.

However, Cashman made it eminently clear he is open to trading McCann, who is owed $17 million each in 2017 and 2018. He already has received offers on McCann, the GM said; the Braves and Astros are believed to be interested, and the Orioles and Nationals both need a catcher.

“The catching market is very thin, so it’s not surprising to anybody [there’s interest in McCann],” Cashman said. “… A lot of teams have expressed interest and offers that I’ve said no to. If I ever get to a point where something makes enough sense, then Mac will have the final say, as he’s earned the right to have that final say.”

His conversations with Abbott, Cashman explained, have covered what the GM called “respect parameters,” concerning how often Abbott wants to be updated by Cashman.

While McCann has repeatedly professed happiness with the Yankees and New York, a return to full-time catching would put a $15 million vesting option for 2019 back in play. In order to vest that option, McCann would have to catch at least 90 games in 2018, total at least 1,000 plate appearances in 2017 and 2018 and not end 2018 on the disabled list. He would not catch 90 games in ’18 under the Yankees’ current plan, assuming Sanchez’s good health.

McCann’s presence on the roster directly impacts the Yankees’ plan at DH.

“I will not be looking at any DHs if I have Brian McCann still here,” Cashman said. “If [McCann approves a trade], then maybe I’ll look at, ‘All right, what am I going to do here in the DH spot? Is there something in the marketplace? Do I just want to stay internal?’ ”

That’s where someone like Morales or Beltran would enter the picture.

Cashman, who said Monday he has spoken with the representative for free-agent closer Aroldis Chapman, acknowledged Tuesday he had officially expressed interest in Kenley Jansen and planned to do the same for Marc Melancon, the other two big names in the closer market. Cashman also said he had spoken with the reps for free-agent outfielders Yoenis Cespedes and Jose Bautista, although he acknowledged that his plan for now was to let the team’s young players (primarily Aaron Judge and Aaron Hicks) get the chance to develop in right field.

Furthermore, Cashman reiterated that he didn’t envision making a big trade for an ace pitcher this winter; Chris Sale of the White Sox could be available for the right price. Said Cashman: “That’s a finish-off move, where you feel like you’re one player away. I feel like we’re still building. It doesn’t mean we can’t accomplish special things next year, but in the winter time, I don’t anticipate us making that type of move.”