Task Force Diamond Head was composed of many components, the list follows.
A Company (Black Jacks) (UH-60's)
B Company (Night Hawks) (UH-60's)
C Company (Long Johns) (UH 60's)(Task Force Pirate)
D Comapnay (Cannibals) (UH-60's)
68th Med (Dustoff) (UH-60's) Hawaii active army
B CO 193 AVIM (Bounty Hunters) Hawaii NG Intermediate Maintenance
C CO 1-211 (Aces) (Ah-64's)
F CO 131 (Lifters) (CH-47's) ½ company from Alabama and ½ company from Georgia
This website is a bit old but it still has some good info:
Do you have a military challenge coin from your collection that you would like to share on the Military Challenge Coin Blog? Take some photos of your coin, write up a simple description, maybe how you came about the challenge coin, and submit it here. If you provide an email address you will be notified when your coin gets featured.