Festo QSMS-4 Mini Pneumatic Bulkhead Fitting 4mm

USD 8.96

Miniature 4mm O.D. push-in bulkhead connector. Operates at -0.95 to +6 bar (-10 to 80°C). Nickel-plated brass body with NBR seals for pneumatic automation.

SKU Festo-153376 Category
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Festo QSMS-4 Mini Pneumatic Bulkhead Fitting 4mm

Model Identifier QSMS-4
Official Part Number 153376
GTIN Standard 4052568034344

Technical Overview

Miniature 4mm O.D. push-in bulkhead connector. Operates at -0.95 to +6 bar (-10 to 80°C). Nickel-plated brass body with NBR seals for pneumatic automation.

Key Features

  • Pneumatic connections: Port 1 and Port 2 configured for 4mm O.D. push-in tubing
  • Pressure range: -0.95 to 6 bar standard, up to 14 bar (temperature-dependent)
  • Temperature envelope: Operates reliably between -10°C and +80°C
  • Material construction: Nickel-plated brass nut with anodized aluminum housing
  • Sealing technology: Integrated NBR tubing seal prevents pneumatic pressure loss
  • Compact miniature footprint: 2.2 mm nominal size with low 6g weight
  • Corrosion resistance: CRC 1 classification for low corrosion stress environments

High-Density Mini Bulkhead Connection Architecture

Technical Specification Matrix

ParameterValue
Pneumatic Connection 14 mm Push-in
Pneumatic Connection 24 mm Push-in
Nominal Size2.2 mm
Operating Pressure-0.95 to 6 bar (up to 14 bar temp-dependent)
Ambient Temperature-10 °C to 80 °C
Nut MaterialNickel-Plated Brass
Housing MaterialAnodized Aluminum
Seal MaterialNBR
Release Ring MaterialPOM (Polyoxymethylene)
Corrosion Resistance Class (CRC)1 - Low corrosion stress
Product Weight6 g
Physical Weight (kg)0.01
Dimensions L x W x H (cm)2.1 x 1.4 x 1.4

Industrial Applications

1. High-Density Control Cabinet Pneumatic Routing

Routes 4mm pneumatic tubing through the walls of compact control panels, providing secure bulkhead connections in extremely confined environments.

Problem Solved

Prevents tubing kinks, strain, and abrasions at panel pass-throughs while saving space in high-density automated testing equipment.

Bulkhead ConnectionSpace OptimizationPanel Pass-throughMiniature Fitting

2. Robotic End-Effector Vacuum Systems

Serves as a vacuum line connector (handling -0.95 bar) for pick-and-place robot end-of-arm tooling components that require tiny, lightweight fittings.

Problem Solved

Provides reliable leak-free connections under vacuum without adding significant payload weight (only 6 grams) to the rapid-moving robotic actuator.

Vacuum Application-0.95 BarLow Payload WeightEnd-of-Arm Tooling

3. Automated Assembly Line Fluid Control

Distributes compressed air to small cylinders or actuators along continuous manufacturing lines operating at ambient temperatures up to 80°C.

Problem Solved

Eliminates pressure drops and leakage in elevated-temperature environments where vibration might dislodge standard friction-fit tubing.

High Temperature OperationVibration ResistancePneumatic DistributionLeak Prevention
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