Spark Plug

Features

Specifications

• Body Style:
  Electrically shielded, full insulator, gasket seat
• Reach Length:
  0.625 inches
• Usage Design:
  Engine other than aircraft
• Width Across Flats:
  0.937 inches
• Electrode Style:
  Two flat ground electrode
• Thread Size And Series/type Designator And Location:
  7/8-18 uns base
• Mean Effective Pressure Rating:
  245.0 pounds per square inch
• Seat Major Diameter:
  1.125 inches
• Height Above Mounting Surface:
  2.625 inches
• Top To Terminal Contact Distance:
  1.000 inches
• Top To Shield Thread Distance:
  0.125 inches
• Shield Thread Length:
  0.500 inches
• Terminal Sleeve Inside Diameter:
  0.378 inches
• Nondefinitive Specification/std Data:
  2 type and a class
• Federal Supply Class (fsc):
  Engine electrical system components, nonaircraft
• National Stock Number (nsn):
  2920-00-075-5121