| Item Name | Muffler Exhaust |
| Federal Supply Group (FSG) | Engine Accessories |
| Federal Supply Class (FSC) | 2990 Miscellaneous Engine Accessories Nonaircraft |
| National Item Identification Number (NIIN) | 01-164-0120 (011640120) |
| NCB Code | USA (01) |
| Manufacturer | Ottawa Truck Inc, Riker Products |
| MRC | Criteria | Characteristic |
|---|---|---|
| ARNJ | INLET LOCATION | CENTRALLY LOCATED IN END SECTION OF BODY SINGLE INLET |
| ARSQ | INLET OUTSIDE DIAMETER | 4.000 INCHES NOMINAL SINGLE INLET4.000 INCHES NOMINAL |
| ARTH | OUTLET CONNECTION TYPE | UNTHREADED 1ST OUTLET |
| ARTJ | OUTLET LOCATION | CENTRALLY LOCATED IN END SECTION OF BODY 1ST OUTLET |
| MATT | MATERIAL | STEEL |
| SFTT | SURFACE TREATMENT | ALUMINUM |
| ABHP | OVERALL LENGTH | 52.000 INCHES NOMINAL |
| ACQW | INLET CONNECTION TYPE | UNTHREADED SINGLE INLET |
| ADAV | OVERALL DIAMETER | 9.000 INCHES NOMINAL |
| AJLW | OUTLET INSIDE DIAMETER | 4.000 INCHES NOMINAL 1ST OUTLET4.000 INCHES NOMINAL |
| APGF | DESIGN TYPE | DRY |
| ARND | MUFFLER DESIGN | ANY ACCEPTABLE |
| ARNG | BODY SHAPE | ROUND |
| ARNH | OPERATING POSITION | ANY ACCEPTABLE |
| Components Related to NSN - 2990-01-164-0120, 2990011640120 | ||||
| 2995-00-871-0757 (2995008710757) | 2910-01-435-4631 (2910014354631) | 2915-01-573-6206 (2915015736206) | 2910-00-184-7449 (2910001847449) | |
| 2910-00-695-3286 (2910006953286) | 2990-01-214-7156 (2990012147156) | 2930-00-364-1503 (2930003641503) | 2920-01-204-6203 (2920012046203) | |
| 2920-00-658-3489 (2920006583489) | 2915-00-034-6493 (2915000346493) | 2920-01-254-1085 (2920012541085) | 2920-01-238-3999 (2920012383999) | |
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