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Parts & Accessories

How To Find Parts:

To find parts by identifying them through a diagram, click the link below. After selecting the image of the part you are looking for, you will be redirected to the information page on that part.

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The helmet mounting solution for night vision goggles has come a long way in the last 20 years, and to date, Aviation Specialties Unlimited, Inc. is proud to distribute the most effective and precise products of helmet mounting, parts, and accessories.

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Battery Cap

Replacement Battery Cap for the HGU-55P Helmet Mount  

Battery Cap Assembly

Replacement Battery Cap Assembly for the HGU-55P Helmet Mount

Battery Cap Retainer
NSN No. 5330-01-303-9745 Replacement Gasket Retainer for the HGU-55P Helmet Mount Battery...
Battery Extender
NSN No. 5340-01-450-1133 Used in conjunction with the HGU-55P Helmet Mount Assembly to en...
Battery Pack Adapter
NSN No. 5935-01-465-0339 Used in conjunction with the HGU-55P Helmet Mount Assembly to en...
Binocular Sub Assy
NSN No. 5855-01-436-1324 Binocular Sub-Assembly for the AN/AVS-9 - includes complete asse...
Carrying Case

NSN No. 6650-01-469-5651

Standard Soft Carrying Case for the AN/AVS-9

Clip-On Power Source

NSN No. 6135-01-447-8948

Used as an alternate power source for the AN/AVS-9

Eyepiece Cell Assembly
NSN No. 5855-01-444-3099 Item is a breakdown component of the Eyepiece Lens Assembly (P/N...
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