334418: Printed Circuit Assembly (Electronic Assembly) Manufacturing

What this code covers

NAICS 334418 covers the step after board fabrication: placing components on a bare board, soldering them, and shipping a loaded board, also called an electronics assembly or module. Surface mount, through-hole, conformal coating, functional test and box build all sit here. Making the bare board is 334412.

In defense the product is usually called a circuit card assembly, or CCA. Buyers ask for CCAs for radios, radar, fire control, avionics, shipboard consoles and ground vehicles, plus potted modules and chassis builds. A steady share of the work is rebuilding a legacy card from an old drawing, sometimes with a substitute for a part that is no longer made.

What federal buyers typically ask for

Workmanship comes first: IPC-A-610 and J-STD-001 at Class 3, and for NASA or satellite work the space and military addendum to J-STD-001. If the assembly includes cables, IPC/WHMA-A-620 applies too. Conformal coating is called out by material and process, ESD control is expected, and a first article with test data is common for a new source. A certificate of conformance with lot traceability ships with every delivery.

The DFARS clause on counterfeit electronic part detection and avoidance shapes this code. It flows down to you: you need a system for buying from original manufacturers or authorized distributors, keeping traceability, and reporting suspect parts. Drawings for cards inside a weapon system are usually ITAR controlled. Many CCAs bought by NAVSUP Weapon Systems Support and DLA Land and Maritime require source approval before award.

Spare and repair CCA buys are often small business set-asides, and some are reserved for service-disabled veteran-owned or 8(a) firms. New production for a platform typically goes to the prime, with assembly work reaching small shops as a subcontract.