Subject:
O-ring material change.

Products Affected:
Kirby Morgan^® SuperLite^® 17C and 27 helmets.

Subject:
Locking Device for Yoke

Products Affected:
Kirby Morgan^® SuperLite^®-17A/B & U.S. Navy MK-21 Mod. 0 & Mod.
I Yoke/Neck Clamp. The Discontinued "As Standard" Locking Device.

Subject:
Drawstring Neck Dam Alteration for Fit

Products Affected:
Kirby Morgan^® SuperLite^®-17 A/B & U.S. Navy MK-21 Mod.O & Mod.I Helmets

Subject:
Counterfeit Kirby Morgan^® KMB-18 BandMask^® Diving Masks and SuperLite^®-17 Diving Helmets.