Spark Plug

Features

Specifications

• Body Style:
  Electrically shielded, partial insulator, gasket seat
• Reach Length:
  0.625 inches
• Usage Design:
  Engine other than aircraft
• Width Across Flats:
  0.875 inches
• Electrode Style:
  Single "j" type ground electrode (see also style 1 & 17)
• Thread Size And Series/type Designator And Location:
  5/8-24 unef shielding
• Thread Size And Series/type Designator And Location:
  18-1.5mm base
• Mean Effective Pressure Rating:
  Between 200.0 pounds per square inch and 260.0 pounds per square inch
• Seat Major Diameter:
  Any acceptable
• Height Above Mounting Surface:
  2.688 inches
• Top To Terminal Contact Distance:
  1.000 inches
• Top To Shield Thread Distance:
  0.125 inches
• Shield Thread Length:
  0.250 inches
• Barrel Inside Diameter:
  0.486 inches
• Terminal Sleeve Inside Diameter:
  0.380 inches
• Federal Supply Class (fsc):
  Engine electrical system components, nonaircraft
• National Stock Number (nsn):
  2920-00-229-6549