Spark Plug

Features

Specifications

• Body Style:
  Electrically shielded, partial insulator, gasket seat
• Dc Resistance Rating In Ohms:
  Between 2000.0 and 20000.0
• Reach Length:
  0.750 inches
• Usage Design:
  Engine other than aircraft
• Width Across Flats:
  Between 0.802 inches and 0.817 inches
• Electrode Style:
  B1 single flat shell ground electrode (see also style 4)
• Mean Effective Pressure Rating:
  275.0 pounds per square inch
• Seat Major Diameter:
  0.790 inches
• Height Above Mounting Surface:
  2.500 inches
• Top To Terminal Contact Distance:
  Between 1.220 inches and 1.320 inches
• Top To Shield Thread Distance:
  Between 0.095 inches and 0.155 inches
• Shield Thread Length:
  Between 0.565 inches and 0.675 inches
• Barrel Inside Diameter:
  Between 0.505 inches and 0.515 inches
• Terminal Sleeve Inside Diameter:
  Between 0.301 inches and 0.316 inches
• Federal Supply Class (fsc):
  Engine electrical system components, nonaircraft
• National Stock Number (nsn):
  2920-00-821-2281