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NationalStockNumber.INFO

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Spark Plug

NSN: 2925-00-142-8731 | Model: AC181
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.

NSN Properties and Flags
NATO Stock Number
2925-00-142-8731
DEMIL
Yes - ITAR Controlled (Code B)
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
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

Pricing and Availability

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NSN 2925-00-142-8731 Datasheet

Supply Class (FSC):
Aircraft Prime Moving Engine Electrical System Components
Cross Reference:
  • AC181
  • AC181
  • AC181
Cage Codes:
  • General Motors Llc (CAGE 7X677)
  • General Motors Corp (CAGE 70040)
  • General Motors Corp (CAGE 24617)
Schedule B & Trade:
  • Schedule B: 8511100000 (NAICS 336320)

    Spark plugs for internal combustion engines

  • SITC: 77831

    Electrical ignition or starting equipment used for spark-ignition or compression-ignition internal combustion engines; generators and cut-outs, etc.

  • End Use: 30200

    Engines and engine parts (carburetors, pistons, rings, and valves)

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

P - Item contains platinum family metals.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 2925-00-142-8731 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Republic Of Korea, and Greece
What is the NIIN of NSN 2925-00-142-8731?
001428731 or 00-142-8731
Does NSN 2925-00-142-8731 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 2925-00-142-8731?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963