General Dynamics Mk-27 FOG Gyrocompass Sperry Attitude Heading Reference System

Garmin GRS 77 HIRF Attitude, Heading Reference Unit P/N 011-00868-10

Garmin GRS-77 Altitude & Heading Reference System P/N 011-00868-10

LITEF LCR-93 Attitude Heading Reference Unit

AHC-3000S ATTITUDE HEADING COMPUTER

Sandel SN3308 Long Life Lamp kit bulb 3308 EHSI HSI

Honeywell Attitude Reference Indicator AR-500 7000836-927

Litef LCR-92 Attitude Heading Reference Unit - PN 124210-2011 (As Removed)