334511: Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing

What this code covers

NAICS 334511 covers systems and instruments that search, detect, navigate or guide: radar and sonar, radio navigation, infrared and other detection systems, aircraft flight and navigation instruments other than engine instruments, gyroscopes and inertial units, autopilots, altimeters and airspeed instruments, guidance systems for missiles and space vehicles, sonobuoys, and nautical instruments.

The big system awards under this code go to large primes. Small firms still win here, for antenna subassemblies, gyro and sensor components, instrument spares, test sets, cable sets and repair. NAVSUP Weapon Systems Support, DLA Aviation, the Air Force Sustainment Center and Army aviation and missile buyers all place spares buys under this code, and NASA and the Coast Guard appear as well.

What federal buyers typically ask for

AS9100 is the norm for airborne items and ISO 9001 the floor for the rest. Environmental and EMI qualification is cited by standard, usually MIL-STD-810 and MIL-STD-461, and civil-derived aircraft equipment may add DO-160. First article testing is common for a new source. Most spares are critical application or flight safety items, so a source approval request with drawings and test evidence usually comes before any award.

Nearly everything here is ITAR controlled under the military electronics or fire control and guidance categories, so registration and controlled data handling come first. The DFARS counterfeit electronic part clause applies to every card and module. Contracts that touch controlled unclassified information will carry the CMMC requirement.

System-level buys are typically unrestricted or sole source to the original manufacturer. Spares, repair and test equipment are where small business set-asides appear, and research and development awards through SBIR and similar programs open a second door.