| 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 |
| Relevant Components for NSN - 2990-01-164-0120, 2990011640120 | ||||
| 2995-00-747-9972 (2995007479972) | 2915-01-039-4717 (2915010394717) | 2920-01-640-6537 (2920016406537) | 2915-00-657-1541 (2915006571541) | |
| 2940-01-571-5540 (2940015715540) | 2940-01-565-9108 (2940015659108) | 2920-01-346-8797 (2920013468797) | 2915-01-101-0058 (2915011010058) | |
| 2910-01-687-0889 (2910016870889) | 2910-00-001-6116 (2910000016116) | 2915-00-780-2164 (2915007802164) | 2910-00-414-6210 (2910004146210) | |
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