Master Lock S3922 Blind Flange Lockout Device


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Details: Master Lock S3922 Blind Flange Lockout Device

The Master Lock No. S3922, S3923, and S3924 Blind Flange Lockout devices are a physical, best practice solution for pipeline maintenance. The adjustable cup allows for a secure fit that conceals and locks out access to nuts holding a blind in place. Workers can perform maintenance with confidence that the blind they placed on a pipeline will not be removed until all workers have removed their padlocks. 4 locking holes allow for multiple workers to lockout device at one time

Product Features

  • Device fully conceals flange bolts preventing access to the blind until all work has been completed
  • Adjustable device provides a tight fit, adapting to multiple flanged pipe applications
  • Four lockout holes allow for multiple workers to lockout device at one time
  • Durable aluminum and hardened steel construction withstands conditions indoors and out

S3922 - for use with nut diameter 3/4in to 1-1/8in (19mm — 28.7mm)

S3923 - for use with nut diameter 1-5/16in to 1-7/8in (33.3mm — 47.8mm)

S3924 - for use with nut diameter 2in to 2-3/4in (52.3mm — 69.9mm)

Lockout-tagout (LO/TO) safety procedures, as defined by Occupational Safety and Health Administration (OSHA), require that lockout devices be durable and standardized. Lockout devices use color, warning labels or tags, and a physical barrier to temporarily prohibit machine operation or power activation, and reduce accidents, during maintenance or repair. This lockout cable is instrumental in alerting your employees that there is a lockout present.

Master Lock is recognized around the world as the authentic, enduring name in padlocks and security products. Since our founding in 1921, we have worked hard to earn and maintain the trust of our customers by delivering on our promise of strength and quality and by continually setting new standards for lock design, application and performance. As the largest global manufacturer and marketer of padlocks, we continue to build our founder's passion for innovation, quality, and compelling value into our expanding lines of security solutions.

Available Model Numbers and Combinations

S3922 Small
S3923 Medium
S3924 Large


lockout tags and labels,s1601--osha-tag-station, osha-safety,


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Master Lock S3922 Blind Flange Lockout Device

Master Lock S3922 Blind Flange Lockout Device