This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Modification of Equipment: Ammunition and Explosives
Possible NAICS Codes
332813 – Electroplating, Plating, Polishing, Anodizing, and Coloring
332722 – Bolt, Nut, Screw, Rivet, and Washer Manufacturing