Aircraft Wheel and Brake Systems

Includes: Skis; Floats; Tracks; Landing Wheel Skid Detectors; Valves specifically designed for use with hydraulic or pneumatic wheel and brake systems; Helicopt...

Tires, Solid and Cushion

Includes: Rubber Track Laying Treads.

Clay and Concrete Products Industries Machinery

Includes: Brickmaking Machinery.

Crystal and Glass Industries Machinery

Includes: Optical Goods Manufacturing Machinery.

Sewage Treatment Equipment

Pipe and Conduit, Nonmetallic

Includes: Concrete Pipe and Conduit; Clay Pipe and Conduit for underground use; Drain Tile; Nonmetallic Pipe Fittings for underground use.

Electronic Modules

Includes: Microcircuits; Electronic Test Equipment Plug-In Units.

Traffic and Transit Signal Systems

Includes: Railroad Signals.

Shipboard Alarm and Signals Systems

Railroad Signal and Warning Devices

Includes: Railroad Gates; Flasher Lights; Block Signals.

Aircraft Alarm and Signal Systems

Includes: Oxygen Pressure Signals and Warning Devices; such as Air Pressure Warning Signals, Aircraft Crew Warning Signals, Altitude Warning Signals, Alarm Cont...

Miscellaneous Alarm, Signal, and Security Detection Systems

Includes: Anti-intrusion Alarm Systems; Foghorns; Gongs; Chimes; Bells; Burglar Alarm Systems; Fire Alarms; Police Alarm Systems; Sounding Devices; Manual Gas A...

Chemical Analysis Instruments

Includes: Acidity (pH) Meters; Gas Analyzers; Alkalinity Measuring Instruments; Colorimeters.

Analysis Instruments, Medical Laboratory Use

Includes: All analysers and instrumentation used in a medical/clinical setting for the purpose of aiding in the medical diagnosis of disease. Types of instrume...

Physical Properties Testing and Inspection

Includes: Destructive and Nondestructive Inspection Equipment such as Fluorescent Penetrant Inspection Units; Magnetic Inspection Units; Industrial X-Ray Machin...

Environmental Chambers and Related Equipment

Includes: Chambers; Wind Tunnels; Enclosures specifically designed to simulate an environmental condition; Weatherometers; Fadeometers; Specially designed equip...

Newspapers and Periodicals

Additive Metal Materials

Includes: Alloying additives (Aluminum, Antimony, Copper, and Others).

Direct aid to tribal Governments and organizations provided by contract pursuant to Public Law (P.L.) 93-638