Part Details | SPARK PLUG
2925-00-294-3890 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: RB27R, 2925-00-294-3890, 00-294-3890, 2925002943890, 002943890
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 29 | JAN 01, 1963 | 00-294-3890 | 00294 ( SPARK PLUG ) |
REFERENCE DRAWINGS & PICTURES
ELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT
SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4)
Cross Reference | NSN 2925-00-294-3890
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| RB27R | 05045 | B G SERVICE COMPANY, INC., THEDBA B G SERVICE COMPANY |
Technical Data | NSN 2925-00-294-3890
| Characteristic | Specifications |
|---|---|
| BODY STYLE | ELECTRICALLY SHIELDED, PARTIAL INSULATOR, GASKET SEAT |
| REACH LENGTH | 0.802 INCHES MINIMUM AND 0.812 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.820 INCHES MINIMUM AND 0.878 INCHES MAXIMUM |
| SEAT MAJOR DIAMETER | 0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
| HEIGHT ABOVE MOUNTING SURFACE | 2.190 INCHES MINIMUM AND 2.310 INCHES MAXIMUM |
| TOP TO TERMINAL CONTACT DISTANCE | 1.000 INCHES MINIMUM AND 1.050 INCHES MAXIMUM |
| TOP TO SHIELD THREAD DISTANCE | 0.120 INCHES NOMINAL |
| SHIELD THREAD LENGTH | 0.250 INCHES NOMINAL |
| BARREL INSIDE DIAMETER | 0.469 INCHES NOMINAL |
| TERMINAL SLEEVE INSIDE DIAMETER | 0.378 INCHES MINIMUM AND 0.383 INCHES MAXIMUM |
| ELECTRODE STYLE | 2 SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4) |
| DC RESISTANCE RATING IN OHMS | 3000.0 NOMINAL |
| USAGE DESIGN | AIRCRAFT ENGINE |