| Item Name | Spark Plug |
| INC Code | 00294 |
| Federal Supply Group (FSG) | Engine Accessories |
| Federal Supply Class (FSC) | 2920 Engine Electrical System Components Nonaircraft |
| National Item Identification Number (NIIN) | 00-293-4521 (002934521) |
| NCB Code | USA (00) |
| Manufacturer | Allied Signal Inc, B G Service Company Inc, Honeywell International Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAQL | BODY STYLE | ELECTRICALLY SHIELDED,PARTIAL INSULATOR,GASKET SEAT |
| AHPM | REACH LENGTH | 0.442 INCHES NOMINAL |
| ALBY | USAGE DESIGN | ENGINE OTHER THAN AIRCRAFT |
| ASDB | WIDTH ACROSS FLATS | 0.878 INCHES NOMINAL |
| AYGA | ELECTRODE STYLE | TRIPLE GAP GROUND ELECTRODE |
| AYGH | SEAT MAJOR DIAMETER | 1.230 INCHES NOMINAL |
| AYGJ | HEIGHT ABOVE MOUNTING SURFACE | 1.888 INCHES NOMINAL |
| AYGK | TOP TO TERMINAL CONTACT DISTANCE | 1.565 INCHES NOMINAL |
| AYGL | TOP TO SHIELD THREAD DISTANCE | 0.125 INCHES NOMINAL |
| AYGM | SHIELD THREAD LENGTH | 0.312 INCHES NOMINAL |
| AYGN | BARREL INSIDE DIAMETER | 0.565 INCHES NOMINAL |
| AYGP | TERMINAL SLEEVE INSIDE DIAMETER | 0.388 INCHES NOMINAL |
| THDS | THREAD SIZE AND SERIES/TYPE DESIGNATOR | 3/4-20 UNEF SHIELD |
| Relevant Components for NSN - 2920-00-293-4521, 2920002934521 | ||||
| 2920-01-650-7654 (2920016507654) | 2920-01-142-7594 (2920011427594) | 2920-01-453-5810 (2920014535810) | 2920-00-354-0934 (2920003540934) | |
| 2920-01-241-9245 (2920012419245) | 2920-00-587-6705 (2920005876705) | 2920-00-049-0121 (2920000490121) | 2920-01-448-1081 (2920014481081) | |
| 2920-00-964-8452 (2920009648452) | 2920-01-169-7614 (2920011697614) | 2920-01-323-5010 (2920013235010) | 2920-01-553-8700 (2920015538700) | |
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