Questions & answers

FAQ.

Straight answers about what we build, how we test, and how to start a program with 603 Manufacturing.

About 603 Manufacturing

What does 603 Manufacturing build?

603 Manufacturing builds cable assemblies and complex wiring harnesses, RF cable assemblies (semi-rigid and flex), and electro-mechanical box builds, with inspection and test completed in-house. Every step happens on one floor in Hudson, New Hampshire.

What industries does 603 Manufacturing serve?

603 Manufacturing serves space, aerospace/defense, medical, and industrial customers, building hardware for programs where reliability is the difference between a mission completed and a mission lost.

Who owns 603 Manufacturing?

603 Manufacturing opened its doors in 1998. Today it is a Trexon, an Amphenol company. Learn more about 603.

Where is 603 Manufacturing located?

603 Manufacturing is located at 46 River Road, Hudson, NH 03051, in southern New Hampshire.

Quality & compliance

What certifications and standards does 603 Manufacturing work to?

603 Manufacturing works to AS9100 and ISO 9001, is ITAR registered, and builds to IPC/WHMA-A-620 Class 3 and J-STD-001 with the space addendum. Assemblies are RoHS compliant where required.

Is 603 Manufacturing ITAR registered?

Yes. 603 Manufacturing is ITAR registered and supports defense and aerospace programs that require it.

Can 603 Manufacturing build space-grade wire harnesses?

Yes. 603 Manufacturing builds space harnesses to IPC/WHMA-A-620 Class 3 and the J-STD-001 space addendum, laid out on a 1:1 fixture or form board and 100% electrically tested before they ship.

How does 603 Manufacturing test its assemblies?

Wire harnesses and cable assemblies get 100% electrical testing, including continuity, hi-pot, and insulation resistance. RF assemblies ship with VSWR, insertion loss, return loss, and TDR data on every unit. Box builds are functionally tested against the customer's acceptance test procedure (ATP).

Are 603 Manufacturing assemblies traceable?

Yes. Every assembly is traceable, every conductor is tested, and every revision is logged, so customers know exactly what they are installing.

Quotes & programs

How do I request a quote from 603 Manufacturing?

Send your specs and quantities through the Request a Quote form or email sales@603mfg.com. 603 Manufacturing responds with a path to production within two business days.

What if my drawings or documentation are incomplete?

603 Manufacturing builds to your print, your wire list, and your acceptance criteria. When documentation is incomplete, the engineering team closes the loop with yours before any copper is cut.

How fast can 603 Manufacturing turn prototypes?

603 Manufacturing delivers prototypes in days, not months, and quick-turn production in days rather than weeks after receipt of material, without cutting corners.

Does 603 Manufacturing offer consignment builds and inventory programs?

Yes. Customers can supply their own components for consignment builds. 603 Manufacturing also supports Kanban, MRP share, customer-owned inventory, kitting, finished goods, and stocking and shipping programs. See all services.

RF cable assemblies

What semi-rigid coax sizes does 603 Manufacturing form?

603 Manufacturing forms .020", .034", .047", .085", .141", and .250" semi-rigid coax. The .047", .085", and .141" sizes run on dedicated CNC bend machines, with hand bending as needed, all held to a ±.030" tolerance.

Which RF connectors does 603 Manufacturing terminate?

603 Manufacturing terminates SMA, SMP, SMPM, TNC, N-type, 2.92mm, 2.4mm, and custom connectors, and more across the RF connector spectrum.

How high in frequency does 603 Manufacturing test RF cables?

603 Manufacturing tests on calibrated VNAs through 40 GHz, extendable per program.

Careers

How do I apply for a job at 603 Manufacturing?

All 603 Manufacturing positions are posted through its parent company, Trexon. See current openings on the Careers page.

Still have questions?

Talk to our team.

Catalog request

603 Capabilities 2025

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Catalog request

603 Capabilities 2025

Tell us a bit about you and we’ll send the PDF straight to your screen

Catalog request

603 Capabilities 2026

Tell us a bit about you and we’ll send the PDF straight to your screen