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Stabilus

8403BY

Гидролифты
Крепление штока
Крепление цилиндра

Specifications

Technical specifications of the gas spring
mounts E19 E20
Rod Ø 8 mm
Cylinder Ø 19 mm
Rod stroke 290 mm
Length 690 mm
Force 450 N

Delivery across Russia. Selected region: Saint Petersburg

Parameter guide

What are mounts? Rod and cylinder end fittings

Gas spring mounts are end fittings that connect the spring to the structure. Mount type affects installation, rotation angle, allowable loads and service life.

Common options:

  • Ball socket — quick to install and allows free rotation.
  • Threaded stud — versatile with brackets or adapters.
  • Clevis — reliable pin or bolt mounting for higher loads.
  • Rod end bearing — compensates misalignment and reduces rod stress.
  • Eyelets and special ends — for non-standard applications.

Consider mechanism design, motion direction and operating conditions. The right mount ensures reliable long-term performance.

On this gas spring (8403BY) rod mount is E19 (type not specified) cylinder mount is E20 (type not specified).

Rod mount E19
Mount rod — E19
Cylinder mount E20
Mount cylinder — E20
What is rod Ø? Rod diameter

Rod diameter in millimeters. A larger diameter improves side-load capacity and buckling resistance. Match rod Ø when selecting an equivalent spring.

Before ordering gas spring Stabilus 8403BY or Stabilus 0004RU with delivery to Saint Petersburg, confirm rod Ø 8 mm fits your application.

What is cylinder Ø? Cylinder diameter

Outer body (cylinder) diameter. It defines overall size and affects force at a given pressure. Specify cylinder Ø together with rod Ø for accurate replacement.

Cylinder Ø 19 mm on Stabilus 8403BY defines body size. Compare with Stabilus 002153 — same cylinder Ø for parameter-based selection.

What is rod stroke? Working stroke

Working rod stroke — how many millimeters the rod extends when the spring is fully extended. Critical for lids, hatches and moving mechanisms.

Rod stroke 290 mm on gas spring Stabilus 8403BY sets how far a lid or hatch opens. In Гидролифты with the same stroke: VST 002936.

What is length? Extended length

Overall length in the fully extended state. Use it to verify the spring fits the assembly without interfering with nearby parts.

Overall length 690 mm on Stabilus 8403BY is a key installation dimension. Gas spring VST VSTS-615-295-690-150N (R4C4) has the same length — compare mounts, rod Ø and force before replacement.

What is force? Force in newtons

Gas spring force in newtons. It determines whether the spring can hold or lift the load. Small tolerance is acceptable; a large difference changes mechanism behavior.

Force 450 N on gas spring Stabilus 8403BY must match your load. Stabilus 1499FH has the same force — useful when choosing a replacement. You can then order a gas spring with delivery to Saint Petersburg.

Where to buy gas spring 8403BY with delivery to Saint Petersburg? Order and delivery

Order gas spring 8403BY on the TPK Vesta website: Saint Petersburg stock, delivery to Saint Petersburg and across Russia. Check parameters in the specs table and in blocks «Similar springs» and «VST replacement» before ordering.

Similar springs

Matched by rod Ø, cylinder Ø, stroke, length, force and mounts. The percentage shows how closely parameters match this item.

Гидролифты

Gas lifts provide smooth height adjustment for chairs, tables, beds and panels. 8403BY: rod diameter 8 mm, cylinder diameter 19 mm, rod stroke 290 mm, extended length 690 mm, force 450 N. End fittings: E19, E20. In stock at TPK Vesta warehouse in Saint Petersburg, delivery across Russia.