AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Muffler Exhaust |
| Federal Supply Group (FSG) | Engine Accessories |
| Federal Supply Class (FSC) | 2990 Miscellaneous Engine Accessories Nonaircraft |
| National Item Identification Number (NIIN) | 00-753-8420 (007538420) |
| NCB Code | USA (00) |
| Manufacturer | Walker Mfg Co, Newark Electronics Corporation, General Motors Corp, Arvin Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| APGF | DESIGN TYPE | DRY |
| ARNG | BODY SHAPE | ROUND |
| ARTJ | OUTLET LOCATION | CENTRALLY LOCATED IN END SECTION OF BODY 1ST OUTLET |
| ARWA | OUTLET OUTSIDE DIAMETER | 2.188 INCHES NOMINAL 1ST OUTLET2.188 INCHES NOMINAL |
| SFTT | SURFACE TREATMENT | ALUMINUM |
| ABHP | OVERALL LENGTH | 22.000 INCHES NOMINAL |
| ACQW | INLET CONNECTION TYPE | UNTHREADED SINGLE INLET |
| ADAV | OVERALL DIAMETER | 6.125 INCHES NOMINAL |
| AJLW | OUTLET INSIDE DIAMETER | 2.005 INCHES MINIMUM AND 2.010 INCHES MAXIMUM 1ST OUTLET |
| ARNA | COOLANT TYPE | AIR |
| ARND | MUFFLER DESIGN | STRAIGHT THROUGH |
| ARNH | OPERATING POSITION | HORIZONTAL |
| ARNJ | INLET LOCATION | CENTRALLY LOCATED IN END SECTION OF BODY SINGLE INLET |
| ARNK | INLET PROJECTION LENGTH | 1.250 INCHES NOMINAL SINGLE INLET1.250 INCHES NOMINAL |
| ARSQ | INLET OUTSIDE DIAMETER | 2.625 INCHES NOMINAL SINGLE INLET2.625 INCHES NOMINAL |
| ARTE | INLET INSIDE DIAMETER | 2.505 INCHES MINIMUM AND 2.510 INCHES MAXIMUM SINGLE INLET |
| ARTH | OUTLET CONNECTION TYPE | UNTHREADED 1ST OUTLET |
| ARTK | OUTLET PROJECTION LENGTH | 1.500 INCHES NOMINAL 1ST OUTLET1.500 INCHES NOMINAL |
| MATT | MATERIAL | STEEL |
| Relevant Components for NSN - 2990-00-753-8420, 2990007538420 | ||||
| 2920-00-424-2979 (2920004242979) | 2990-00-447-2016 (2990004472016) | 2920-01-058-1026 (2920010581026) | 2920-01-447-4280 (2920014474280) | |
| 2990-01-630-2542 (2990016302542) | 2910-01-146-0880 (2910011460880) | 2995-00-939-8700 (2995009398700) | 2920-01-368-7449 (2920013687449) | |
| 2910-00-288-5859 (2910002885859) | 2940-01-516-9565 (2940015169565) | 2915-99-739-6457 (2915997396457) | 2990-01-412-7943 (2990014127943) | |
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