Part Details | SPARK PLUG
2925-00-240-3905 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.
Alternate Parts: R37S1, 2925-00-240-3905, 00-240-3905, 2925002403905, 002403905
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 29 | JAN 01, 1963 | 00-240-3905 | 00294 ( SPARK PLUG ) |
REFERENCE DRAWINGS & PICTURES
ELECTRICALLY SHIELDED, FULL INSULATOR, GASKET SEAT
SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
Cross Reference | NSN 2925-00-240-3905
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| R37S1 | 0AFL4 | CHAMPION AEROSPACE LLC |
Technical Data | NSN 2925-00-240-3905
| Characteristic | Specifications |
|---|---|
| BODY STYLE | ELECTRICALLY SHIELDED, FULL INSULATOR, GASKET SEAT |
| REACH LENGTH | 0.793 INCHES MINIMUM AND 0.813 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.875 INCHES NOMINAL |
| SEAT MAJOR DIAMETER | 0.970 INCHES MAXIMUM |
| HEIGHT ABOVE MOUNTING SURFACE | 2.125 INCHES MINIMUM AND 2.375 INCHES MAXIMUM |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES MINIMUM AND 1.070 INCHES MAXIMUM |
| TOP TO SHIELD THREAD DISTANCE | 0.105 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.290 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| ELECTRODE STYLE | 1 SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4) |
| MEAN EFFECTIVE PRESSURE RATING | 330.0 POUNDS PER SQUARE INCH NOMINAL |
| DC RESISTANCE RATING IN OHMS | 1000.0 NOMINAL |
| USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |