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MASTER LOCK S3900 Pneumatic Fitting Lockout, Male Fittings - Pneumatic Fitting Lockouts
MASTER LOCKPneumatic Fitting Lockouts

MASTER LOCK S3900 Pneumatic Fitting Lockout, Male Fittings

The MASTER LOCK Pneumatic Fitting Lockout (MPN S3900) is a male-fittings lockout device designed to isolate pneumatic energy during maintenance. As a MASTER LOCK product, it provides a secure lockout point for male…

SKU 3G-OTH-554366

Also listed as: S 3900 · S-3900

Brand
MASTER LOCK
Item
S3900 Pneumatic Fitting Lockout, Male Fittings
Part Number
S3900
Category
Pneumatic Fitting Lockouts
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Technical Specifications

MASTER LOCK
Manufacturer Part Number
S3900
Type
Male Fittings

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MASTER LOCK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MASTER LOCK Pneumatic Fitting Lockout (MPN S3900) is a male-fittings lockout device designed to isolate pneumatic energy during maintenance. As a MASTER LOCK product, it provides a secure lockout point for male pneumatic fittings, supporting safety procedures across industrial facilities.

Frequently Asked Questions

What is the MASTER LOCK S3900 pneumatic fitting lockout used for?

The MASTER LOCK S3900 isolates pneumatic energy by locking out male pneumatic fittings during maintenance. It creates a secure lockout point to prevent accidental equipment startup, supporting safety procedures in industrial facilities such as manufacturing plants, refineries, and processing lines.

What are the specifications of the MASTER LOCK S3900?

The MASTER LOCK S3900 is a pneumatic fitting lockout designed for male fittings. Its brand is MASTER LOCK, and the manufacturer part number is S3900. It is a Type: Male Fittings device used to secure pneumatic energy isolation points during maintenance and servicing.

Where to buy the MASTER LOCK S3900 worldwide?

3G Electric supplies the MASTER LOCK S3900 pneumatic fitting lockout to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this safety device for pneumatic lockout applications.

How to install the MASTER LOCK S3900 lockout device?

To install the MASTER LOCK S3900, attach it directly onto the male pneumatic fitting to block airflow. Ensure the fitting is depressurized before installation. Apply a padlock through the lockout hasp to secure the device. Follow your facility's lockout/tagout procedures for safe maintenance.

Used in

Common applications for MASTER LOCK
Industrial lockout/tagout — Master Lock 1483BP410ES lockout station with padlocks and safety tags for hazardous energy control.
Commercial office buildings — Master Lock office lever locksets in satin brass or nickel for interior doors in administrative areas.
School and gym lockers — Master Lock 1670 built-in combination locker locks for right-hand mounting on metal lockers.
Equipment and gate security — Master Lock 8154DPF cable lock with 6 ft steel cable for securing equipment and gates.
Toolbox and storage security — Master Lock 176 combination padlock with brass body and steel shackle for lockers and toolboxes.
ADA-compliant locker applications — Master Lock 1676MKADA locker lock for accessible facilities requiring ADA compliance.
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MASTER LOCK Products

3G Electric supplies MASTER LOCK pneumatic fitting lockouts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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