With over 46,000 individual part numbers, ESNA is also the world’s largest producer of custom designed, tight tolerance bushings to the major OEM’s. We also provide complementary products and service offerings that include the manufacturing of aerospace nut plates, clip nuts, aircraft fluid fittings, flanges, metal lock nuts and machined ...

ESNA specializes in manufacturing high quality internally threaded self-locking aerospace fasteners. Our diverse production expertise allows us to deliver a broad product portfolio, and our responsiveness to customer needs makes us the industry choice.

As the pioneer manufacturer of self-locking fasteners, ESNA offers the benefits of more than 85 years experience in the design and manufacture of vibration-proof fasteners and tight tolerance bushings.

The ESNA story began in 1927, when a young engineer named Carl Arthur Swanstrom arrived in the Unites States from Sweden. He brought with him a license to manufacture and sell a unique new self-locking fastener, which he called an “Elastic Stop Nut” because the nut remained “stopped” anywhere along the bolt threads.

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ESNA is committed to protecting the environment by continually improving our environmental management system and pledges to implement and operate the ISO14001 EMS throughout our Pocahontas, AR facility to further enhance environmental performance.

ESNA is the world’s largest producer of custom-designed tight tolerance bushings. Our in-house processing capabilities, combined with decades of aerospace manufacturing experience, have allowed us to deliver more than 46,000 individual part numbers to the world’s major OEMs.

A large inventory of raw materials and complete in-house production capabilities make ESNA a leader in precision-machined parts manufacturing. We have the capacity to produce high volumes of machined parts from a wide variety of aerospace materials, including hard metals like titanium and nickel alloy.

ESNA Canada (514) 631-9013 (800) 361-9436 2214 – 46th Avenue Lachine, QC Canada H8T 2P3

Vertically integrated metal finishing allows ESNA to comprehensively serve customers. We are able to match the best process to the parts being finished every time. The facility has the capacity to plate cadmium to AMS-QQ-P-416 and zinc nickel to …