Oregon Aero® Zeta II® Helmet Liners for HGU-56P
Zeta II® Helmet Liners
for HGU-56P
The PM Air Warrior approved Oregon Aero® Zeta II® Helmet Liner solves the problems of liner hot spots, perspiration and helmet instability — safety-related problems which can reduce focus and execution of the mission.
Easy Fitting
No more hour-long fitting sessions that require liner heating! The Zeta II® Helmet Liner Upgrades can be done in minutes as shown below. See the following information about how to select the correct Zeta II® Helmet Liner length and thickness.

Place Liner inside helmet.
The ZetaLiner® Helmet
Liner is retained by hook/loop.
     
When installed, the Zeta II® Helmet Liner should be level with the lower edge of the polystyrene liner at the front of the helmet, fit smoothly along the interior contour of the polystyrene liner and mate completely with the hook and pile tape sewn into the rear nape pad of the helmet.
PM Air Warrior Approved
Zeta II® Helmet Liner for the
HGU-56P.		  
   
How to Select the Correct Helmet Liner Length and Thickness
Choosing a Helmet Liner Length

Measure the inside of your helmet from front to back, down into the bowl, as shown in the photo. Then consult the chart below and find the correct part number.
   
  Choosing a Helmet Liner Thickness

Available in four thicknesses:
1/4", 3/8", 1/2" and 5/8".

The most commonly used thickness is 3/8". To select the proper liner thickness, review the information below, then find your part number.

NOTE: If your TPL®* has been heated and fitted, you will probably need a Helmet Liner one thickness thinner than those listed below.



IF YOUR TPL® LINER HAS:


THEN TRY:
2 Layers 1/4" Zeta II® Liner
3 Layers 3/8" Zeta II® Liner
4-5 Layers 1/2" Zeta II® Liner
5+ Layers 5/8" Zeta II® Liner

NOTE: The sizing informaton above is intended to suggest a starting point for the fitting process. Each pilot should be fitted individually for comfort and stability. Final results may differ from the above data. Fitting only takes minutes!
PART
NUMBER
DESCRIPTION
PRICE
EACH
9A-0015-101
NSN 8415-01-580-5456 		15″ (front to back) Zeta II® Helmet Liner 1/4″thick $99.00
9A-0015-102
NSN 8415-01-580-5460 		15″(front to back) Zeta II® Helmet Liner 3/8″thick $99.00
9A-0015-103
NSN 8415-01-580-5465 		15″(front to back) Zeta II® Helmet Liner 1/2″thick $99.00
9A-0015-104
NSN 8415-01-580-5480 		15″(front to back) Zeta II® Helmet Liner 5/8″thick $99.00
9A-0016-101
NSN 8415-01-580-5484 		16″ (front to back) Zeta II® Helmet Liner 1/4″thick $ 99.00
9A-0016-102
NSN 8415-01-580-5489 		16″(front to back) Zeta II® Helmet Liner 3/8″thick $ 99.00
9A-0016-103
NSN 8415-01-580-5492 		16″(front to back) Zeta II® Helmet Liner 1/2″thick $ 99.00
9A-0016-104
NSN 8415-01-580-5494 		16″(front to back) Zeta II® Helmet Liner 5/8″thick $ 99.00
9A-0017-101
NSN 8415-01-580-5498 		17″ (front to back) Zeta II® Helmet Liner 1/4″thick $ 99.00
9A-0017-102
NSN 8415-01-580-5499 		17″(front to back) Zeta II® Helmet Liner 3/8″thick $ 99.00
9A-0017-103
NSN 8415-01-580-5500 		17″(front to back) Zeta II® Helmet Liner 1/2″thick $ 99.00
9A-0017-104
NSN 8415-01-580-5859 		17″(front to back) Zeta II® Helmet Liner 5/8″thick $ 99.00
9A-0018-101 18″ (front to back) Zeta II® Helmet Liner 1/4″thick $ 99.00
9A-0018-102 18″(front to back) Zeta II® Helmet Liner 3/8″thick $ 99.00
9A-0018-103 18″(front to back) Zeta II® Helmet Liner 1/2″thick $ 99.00
9A-0018-104 18″(front to back) Zeta II® Helmet Liner 5/8″thick $ 99.00

 

All Pricing is FOB Origin
 
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