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.
Rocket Prime Movers, Liquid Type, including Liquid Jet Assisted Takeoff (JATO) Units, for use in aircraft, rockets, and guided missiles; Liquid Propellants encased in consumable containers, intended for insertion into missile propulsion systems as integral parts.
Rocket Motors (Solid Propellant Units) (FSC 1337); Liquid Propellants predetermined to specific quantity and quality, but packaged in reusable containers; Solid Propellant Squibs and Cartridges, whether intended for insertion into Liquid Propellant Systems or not (FSC 1337).
Possible NAICS Codes
336415 – Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing
336412 – Aircraft Engine and Engine Parts Manufacturing
335312 – Motor and Generator Manufacturing
332710 – Machine Shops
332313 – Plate Work Manufacturing
332312 – Fabricated Structural Metal Manufacturing