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3M™ Littmann® Cardiology S.T.C. (soft-touch chestpiece) Stethoscope, Navy Blue Tube, 27 inch, 4473

UPC# 00707387559267    CAT# 4473    3M ID 70200735507     
3M(TM) Littmann(R) Cardiology S.T.C. Stethoscope, Model 4473
3M(TM) Littmann(R) Cardiology S.T.C. Stethoscope, Model 4473
3M(TM) Littmann(R) Cardiology S.T.C. Stethoscope, Model 4473
3M(TM) Littmann(R) Cardiology S.T.C. Stethoscope, Model 4473
3M(TM) Littmann(R) Cardiology S.T.C. Stethoscope, Model 4473
The 3M™ Littmann® Cardiology S.T.C. Stethoscope features a sure-grip chestpiece that is easy to maneuver between auscultation sites. Clinicians depend on the Cardiology S.T.C. stethoscope for identifying and studying cardiac sounds in adult patients.


  • Soft-Touch Chestpiece provides comfortable, secure grip in at least three hand positions with and without gloves.
  • Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece.
  • Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
  • Soft-sealing eartips provide a comfortable fit and excellent acoustic seal; they snap tightly onto the eartubes for safety.
  • Headset is easily adjusted for individual fit and comfort. Angled eartubes align with ear canals.
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The 3M™ Littmann® Cardiology S.T.C. Stethoscope combines a unique, ergonomic design and precision craftsmanship to provide a superb listening experience. The distinctive Soft-Touch Chestpiece (S.T.C.) allows you to maintain a sure grip while easily moving between auscultation sites.

Tunable diaphragm technology—a 3M invention—lets clinicians hear different frequency sounds by simply adjusting the pressure on the chestpiece. Unlike two-sided models, there’s no need to turn over and reposition the chestpiece. Hold the chestpiece with light pressure to hear low frequency sounds; press a little more to hear higher frequency sounds. This time-saving feature allows the healthcare provider to focus on the patient, while the non-chill rim provides patient comfort.

Headset tension is easily adjusted for head size and comfort by squeezing together or pulling apart the eartubes. Snap-tight, soft-sealing eartips conform to individual ears for an excellent acoustic seal and comfortable fit. Eartips snap firmly onto the ends of the eartubes and, for safety, require a significant effort to remove.

Resilient next-generation tubing retains its shape and flexibility even after folding tightly into a pocket. It provides longer stethoscope life due to improved resistance to skin oils and alcohol, and is less likely to pick up stains. Next-generation tubing is not made with natural rubber latex, a benefit to sensitive medical professionals and their patients. And, to play its part in the protection of human health and the environment, the next-generation tubing does not contain phthalate plasticizers.

The Cardiology S.T.C. stethoscope is made in the USA for consistent quality. It comes complete with large and small soft-sealing eartips, large firm eartips, and instructions.

  • Broadly used in a large variety of health care settings as a diagnostic tool as part of the physical assessment of heart, lung and bowel sounds. A perfect stethoscope for cardiologists, critical care nurses, EMTs, ER doctors, general practitioners, medical students, respiratory specialists.


 Applications‎ Cardiology/High Performance‎
 Chestpiece Finish‎ Matte finish stainless steel‎
 Chestpiece Technology‎ Single sided‎
 Chestpiece Weight‎ 3.35 Ounce‎
 Chestpiece Weight (metric)‎ 95 g‎
 Color‎ Marine Blue‎
 Color Group‎ Blue‎
 Diaphragm Diameter‎ 1.88 Inch‎
 Diaphragm Diameter (metric)‎ 4.8 cm‎
 Diaphragm Material‎ Epoxy/Fiberglass‎
 Diaphragm Type‎ Tunable Diaphragm‎
 Eartip Type‎ Soft Sealing‎
 Extra Eartips‎ Yes‎
 Headset Material‎ Wide diameter aerospace alloy / Anodized aluminum‎
 Length‎ 27 Inch‎
 Length (Metric)‎ 69 cm‎
 Model‎ Cardiology S.T.C.‎
 Net Weight‎ 6.4 oz‎
 Net Weight (Metric)‎ 180 g‎
 Occupation‎ Anesthesiologist‎ ,  Cardiologist‎ ,  Emergency Physician‎ ,  EMT/EMS‎ ,  Family Practitioner‎ ,  Internist‎ ,  Medical Student‎ ,  Nurse‎ ,  Pediatrician‎ ,  Physician‎ ,  Respiratory Specialist‎
 Patient‎ Adult‎
 Performance‎ 9‎
 Special Adaptors‎ No‎
 Trademark‎ Littmann‎
 Tube Color‎ Navy Blue‎
 Warranty Period‎ 6 years‎