| Item Name | Muffler Exhaust |
| Federal Supply Group (FSG) | Engine Accessories |
| Federal Supply Class (FSC) | 2990 Miscellaneous Engine Accessories Nonaircraft |
| National Item Identification Number (NIIN) | 00-991-3657 (009913657) |
| NCB Code | USA (00) |
| Manufacturer | General Motors Corp, Walker Mfg Co, Clark Radio Equipment Co, Arvin Industries Inc, Truck And Bus Group |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 3981940 | general motors corp | muffler exhaust | RFQ |
| 21028 | walker mfg co | muffler exhaust | RFQ |
| 3816360 | clark radio equipment co | muffler exhaust | RFQ |
| 3816360 | general motors corp | muffler exhaust | RFQ |
| 101901 | arvin industries inc | muffler exhaust | RFQ |
| 3865285 | truck and bus group | muffler exhaust | RFQ |
| 3865285 | general motors corp | muffler exhaust | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 26.500 INCHES NOMINAL |
| ACQW | INLET CONNECTION TYPE | UNTHREADED SINGLE INLET |
| ADAV | OVERALL DIAMETER | 5.000 INCHES NOMINAL |
| AJLW | OUTLET INSIDE DIAMETER | 1.687 INCHES NOMINAL 1ST OUTLET1.687 INCHES NOMINAL |
| APGF | DESIGN TYPE | DRY |
| ARNA | COOLANT TYPE | AIR |
| ARND | MUFFLER DESIGN | STRAIGHT THROUGH |
| ARNG | BODY SHAPE | ROUND |
| ARNH | OPERATING POSITION | HORIZONTAL |
| ARNJ | INLET LOCATION | LOCATED IN CENTER OF END SECTION SINGLE INLET |
| ARNK | INLET PROJECTION LENGTH | 2.250 INCHES NOMINAL SINGLE INLET2.250 INCHES NOMINAL |
| ARSQ | INLET OUTSIDE DIAMETER | 2.125 INCHES NOMINAL SINGLE INLET2.125 INCHES NOMINAL |
| ARTE | INLET INSIDE DIAMETER | 2.000 INCHES NOMINAL SINGLE INLET2.000 INCHES NOMINAL |
| ARTH | OUTLET CONNECTION TYPE | UNTHREADED 1ST OUTLET |
| ARTJ | OUTLET LOCATION | LOCATED IN CENTER OF END SECTION OPPOSITE INLET 1ST OUTLET |
| ARTK | OUTLET PROJECTION LENGTH | 2.250 INCHES NOMINAL 1ST OUTLET2.250 INCHES NOMINAL |
| ARWA | OUTLET OUTSIDE DIAMETER | 1.812 INCHES NOMINAL 1ST OUTLET1.812 INCHES NOMINAL |
| MATT | MATERIAL | STEEL |
| SFTT | SURFACE TREATMENT | ZINC |
| Relevant Components for NSN - 2990-00-991-3657, 2990009913657 | ||||
| 2915-00-406-2708 (2915004062708) | 2910-00-367-3609 (2910003673609) | 2915-00-798-6708 (2915007986708) | 2910-01-249-3378 (2910012493378) | |
| 2915-00-349-3367 (2915003493367) | 2990-01-533-4818 (2990015334818) | 2990-01-666-9705 (2990016669705) | 2945-01-324-4862 (2945013244862) | |
| 2995-00-434-0834 (2995004340834) | 2930-00-077-1498 (2930000771498) | 2910-01-591-0752 (2910015910752) | 2930-01-382-8691 (2930013828691) | |
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