Cup Style Vibration Isolation Mounts - S-Mount Series

Barry S-Mounts are air-damped isolators designed to provide the highest degree of vibration isolation for sensitive commercial and military airborne equipment.


S-Mount Air Damped Isolators

Low-frequency variable air-damped mounts for a high level of vibration isolation. Barry S-Mounts are air-damped isolators and are designed to provide the highest degree of vibration isolation for sensitive commercial and military airborne equipment. S-Mounts are particularly effective at isolating low level vibration.


[Natural Frequency] 7-10 Hertz
[Load Range] 0-45
[Transmissibility at Resonance] 3.5 max. at sea level
Approx. 4.3 at 50,000 feet
[Resilient Element] Air-damped spring
[Standard Materials] Varies with model
[Weight] S22=0.5 oz
S44=5.0 oz.

Load Range

  • S22 = 6 load ratings from .3 - 3 lbs. per mount
  • S44 = 7 load ratings from .25 - 9 lbs. per mount
  • S64 = 7 load ratings from 2.0 - 25 lbs. per mount

Environmental Data

  • Silicone Air Chambers and Snubbers have operating temperature ranges of -67ºF to +300ºF (-55ºC to +150ºC).
  • Mounts meet all applicable standards of MIL-C-172 and are fungus and oil resistant.


  • Military & Commercial Airborne Equipment
  • Computers and Storage Devices
  • Optical Devices & Instrumentation
  • Lasers
  • Clinical Diagnostic Equipment

Benefits & Features

  • Up to 90% isolation efficiency with inputs as low as 40 Hz.
  • Variable air-damping provides increasing isolation efficiency in high-frequency regions, even when input excursions become small
  • Meets safety requirements of MIL-E-5400 (30G 11ms half sine pulse)

Data Sheets

Special Options Available

  • Elastomers
  • Metals
  • Metal Paint/Finish
  • RoHS Compliance
  • Marking
  • Packaging

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