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Critical Federal Stock Classes


Due to national security concerns, some federal stock classes (FSC's) require a higher degree of documentation when being turned in under a local stock number opposed to a cataloged national stock number. These critical FSCs must be turned in with following information on or attached to the DD 1348-1A
  1. Appropriate FSC
  2. Manufacturer name and valid part number
  3. Nomenclature which accurately describes the item
  4. End item application
  5. Clear text statement explaining why the NSN is not included


Critical FSCs

FSG/FSC DESCRIPTION
10 (All) Weapons
11 (All) Nuclear Ordnance
12 (All) Fire Control Equipment
13 (All) AE
14 (All) Guided Missiles
1560 Airframe Structural Components
1670 Parachutes: Aerial Pick Up, Delivery, Recovery
1710 Aircraft Landing Equipment
1720 Aircraft Launching Equipment
1810 Space Vehicles
1820 Space Vehicle Components
1830 Space Vehicle Remote Control Systems
1840 Space Vehicle Launchers
1905 Combat Ships and Landing Vessels
2305 Ground Effect Vehicles
2330 Trailers
2350 Combat, Assault, and Tactical Vehicles, Tracked
2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
2845 Rocket Engines and Components
2915 Engine Fuel System Components, Aircraft and Missile Prime Movers
3690 Specialized Ammunition and Ordnance Machinery and Related Equipment
4230 Decontaminating and Impregnating Equipment
4470 Nuclear Reactors
4921 Torpedo Maintenance, Repair, and Checkout Specialized Equipment
4923 Depth Charges and Underwater Mines Maintenance, Repair, and Checkout Specialized Equipment
4925 Ammunition Maintenance, Repair, and Checkout Specialized Equipment
4927 Rocket Maintenance, Repair, and Checkout Specialized Equipment
4931 Fire Control Maintenance and Repair Shop Specialized Equipment
4933 Weapons Maintenance and Repair Shop Specialized Equipment
4935 Guided Missile Maintenance, Repair, and Checkout Specialized Equipment
4960 Space Vehicle Maintenance, Repair, and Checkout Specialized Equipment
5810 Communications Security (COMSEC) Equipment and Components
5811 Other Cryptologic Equipment and Components
5820 Radio and Television Communication Equipment, Except Airborne
5821 Radio and Television Communication Equipment, Airborne
5825 Radio Navigation Equipment, Except Airborne
5826 Radio Navigation Equipment, Airborne
5840 Radar Equipment, Except Airborne
5841 Radar Equipment, Airborne
5845 Underwater Sound Equipment
5850 Visible and Invisible Light Communication Equipment
5855 Night Vision Equipment, Emitted and Reflected Radiation
5860 Stimulated Coherent Radiation Devices, Components, and Accessories
5865 Electronic Countermeasures, Counter-Countermeasures, and Quick Reaction Capability Equipment
5963 Electronic Modules
5985 Antennas, Waveguides, and Related Equipment
5998 Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware
5999 Miscellaneous Electrical and Electronic Components
6615 Automatic Pilot Mechanisms and Airborne Gyro Components
6920 Armament Training Devices
6930 Operation Training Devices
6940 Communication Training Devices
8470 Armor, Personal
8475 Specialized Flight Clothing and Accessories


Critical Buzz Word List

A-D D-M M-Z
Ablative Doppler Mine
Accelerometer Ejector Missile
Afterburner Electromagnetic Pulse Modulator
Aiming Device Electronic Countermeasures Night Sight(ing)
Amphibious Electronic Warfare Nuclear
Amplifier Electro-Optical Optic (al)
Antenna Encoder Oscillator
Armor Equilibrator Particle Beam
Astro Compass Feeder (Ammo) Periscope
AHRS Filter RF Processor(ing)
Ballistic Fire Control Projectile
Beacon Firing Mechanism Pylon
Bomb(ing) Frequency Generator Radar
Breech Guidance Radome
Camouflage Gunsighting Range Finder
Carriage Gyro (scope) Receiver
Cartridge Height Finder Research & Development (R&D)
Cathode Ray IFF Scope
Chaff Image Intensifier Sight
CCA Inertial Sonar
Classified IR Spotting Device
Cold Cathode Interception Spryton
Collimator Klystron Star Tracker
Composite Krytron Synchronizer
COMSEC Laser Target(ing)
Countermeasures Launcher Telescopic
Crypto Linker/Delinker Tempest
Crystal Logic Transmitter
Decoder Magnetron Traveling Wave Tube
Delay MASER Waveguide
Detonating Memory
Detector Metal Embrittling