Masterlock S3900 Pneumatic Lockout
- Inhibits pneumatic fittings from being connected to pressurized air sources
- Fits practically all male pneumatic fittings that can be found in manufacturing facilities
- Constructed from stainless steel to ensure maximum corrosion resistance
- Measures 3.4 cm wide x 19.6 cm x 0.3 cm thickness
- Accepts any American Lock or Master Lock Safety padlock
- Works with lockout hasps to enable multiple worker lockout
- Replaces the now obsolete model 465 pneumatic lockout
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