Test & Maintenance Equipment

Aviation Specialties Unlimited, Inc. offers everything you need to inspect, service, and repair your NVGs.  We offer an array of Hoffman test equipment NVG test kits, focus systems, purge kits, and toolsets, as well as other specialty items, such as N2- GEN 4 - Compact Nitrogen Generator. In addition to NVG lab equipment, ASU offers NVG Testing and Maintenance repair courses to train your technicians to inspect, service, and repair your NVGs which will minimize downtime and extend the life of your NVG equipment.

Compact Nitrogen Purge Kit

ASU’s Compact Nitrogen Purge Kit is specially designed for the maintenance of ANVIS and PVS
night vision goggles. The compact size, weight, and rugged case are ideal for portability and operation in the most austere environments.


    Download the Spec Sheet

    The ASU Purge Kit operates via an easy-to-operate manual vacuum pump, which requires no electricity. Weighing just 15 lbs., the purge kit contains all the equipment needed to purge night vision devices. Straightforward, detailed instructions enable fast and effective purging both at the maintenance facility and in the field. The kit includes a refillable 24 cu. In. dry nitrogen tank, equipped with a high-quality regulator. Kit also includes adapters for AN/AVS-6 and AN/AVS-9. 

    This unit is a replacement for P/N 268549, NSN No. 5855-01-442-8781

    • Portable weight of 15 lbs
    • Quick and easy to assemle/disassemble
    • Simple, hand-operated vacuum pump
    • Leak detection capability
    • Refillable 24 cu. in. nitrogen purge tank included
    • Rugged, heavy-duty carrying case
    • Case dimensions 18x7x14 in.