​Our Postal Locks have been approved by the manufacturers of USPS Postal Equipment. ESP offers 4 different multi cam packages to ensure lock compatibility in the field. We offer standard lengths of .656 (ESP) & .812. The No. 656 can be ordered for outdoor (Dust Shuttered) or indoor (Non-Dust Shuttered) applications. Furnished with 5 cams, 2 clips and 2 slots, ESP is the only US Manufacturer that offers threaded cylinders mounted with a Hex Nut. This feature insures higher security and accommodates any door thickness. Need a Postal Lock? ESP offers every option you need in the field.
Pin Tumbler Postal Locks / Multi Cam
No. PTR-656UN​
Package includes: 1 lock (Non-Dust Shuttered) with 2 keys, 5 OHE replacement cams, and 2 different gauge Mounting Clips.
Replaces National C8735
No. PTR-DC656UN
Package includes: 1 lock (Dust Shuttered) with 2 keys, 5 OHE replacement cams, and 2 different gauge Mounting Clips. Designed for outdoor specifications.
​No. PT812RN5CPA
HL1 (Hudson Lock Replacement), .812 Cylinder Length Threaded, 7/8" face diameter,5 OEM replacement cams, 2 nickel plated keys, Hudson Keyway. Ideal for High Security application with oversized door thickness. Mount with Hex Nut Included.
Replaces National C8730
The Outdoor Magnum Cam Lock
  • Automotive 302 S.S. Dust Shutter
  • 1,000 Codes Available
  • 6 Wafers including "Anti-Pick" in the first position.
  • Passes ASTM E331 Water Engress Test
  • Passes SAe J276 Resistance to Dust Ingress Test
  • Passes 1,000 Hours of Salt Spray per ASTM B117
  • Choose E, L S or Y rotation from page 125
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Picture
No. PTR-656
OEM Replacement
​Postal Mailbox Locks
ESP’S OEM postal replacement lock program offers specific locks for a specified box manufacturer. Each lock is equipped with 2 keys, a removable cam and 2 different grade mounting clips. See the enclosed cross reference chart to qualify your specific need. See Appendix below. 
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