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Worldwide distributor of NSN parts and consumables located in the USA.

Spark Plug

Model / MPN: AC181 | NSN: 2925-00-142-8731
ITAR Registered seal

An item containing two or more electrodes across which an electric spark is discharged to ignite a fuel and air mixture, primarily in internal combustion engines. Excludes glow plug; and electrode.

Product Details
NATO Stock Number
2925-00-142-8731
Sold in multiples of
DEMIL
DEMIL/MLI
Body Style
Electrically shielded, full insulator, gasket seat
Dc Resistance Rating In Ohms
1500.0
Reach Length
Between 0.792 inches and 0.812 inches
Usage Design
Aircraft engine
Width Across Flats
Between 0.870 inches and 0.878 inches
Electrode Style
Two flat ground electrode
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
340.0 pounds per square inch
Seat Major Diameter
0.960 inches
Height Above Mounting Surface
Between 2.188 inches and 2.312 inches
Top To Terminal Contact Distance
Between 1.000 inches and 1.070 inches
Top To Shield Thread Distance
Between 0.105 inches and 0.145 inches
Shield Thread Length
0.375 inches
Terminal Sleeve Inside Diameter
Between 0.378 inches and 0.388 inches
AC181 Series Parts

Pricing and Availability

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AC181 Cross Reference
  • AC181
  • AC181