AutoMeter Straight Gauge Adapter Fitting - 5/8-18 in Female to 1/2 in NPT Male - Red Anodized - Mechanical Temperature Gauges 23011806 Backing Washers are not needed

Backing Washers are not needed on SA2015 helmets

6 AN Male to 12 AN Male O-Ring

1/2 in Hose Barb Vent

and 3/16" diameter rivets

non-replaceable oil absorbent pad and is 23" long x 12-1/2" high x 12" wide

AutoMeter Straight Gauge Adapter Fitting - 5/8-18 in Female to 1/2 in NPT Male - Red Anodized - Mechanical Temperature Gauges 23011806 Backing Washers are not needed5 8" 18 UNF Female (adapts directly to sealing nut on AutoMeter Mechanical Temp Gauges) to 1 2" NPT Male Features: 5 8" 18 UNF female thread, 45 ? tapered seat to 1 2" NPT male Manufactured from high quality aluminum Auto Meter Gauges are the number one choice of professional racers worldwide. Auto Meter, the most respected manufacturer of high quality, performance aftermarket instrumentation, tachometers, gauges, gauge pods, and test equipment.