| Item Name | Muffler Exhaust |
| Federal Supply Group (FSG) | Engine Accessories |
| Federal Supply Class (FSC) | 2990 Miscellaneous Engine Accessories Nonaircraft |
| National Item Identification Number (NIIN) | 00-460-4440 (004604440) |
| NCB Code | USA (00) |
| Manufacturer | Ar Bee Corp, Nacco Materials Handling Group Inc, Cummins Filtration Inc, Brighton Cromwell Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 20.000 INCHES NOMINAL |
| ACQW | INLET CONNECTION TYPE | FLANGE SINGLE INLET |
| ADAV | OVERALL DIAMETER | 6.120 INCHES NOMINAL |
| AJLW | OUTLET INSIDE DIAMETER | 1.755 INCHES NOMINAL 1ST OUTLET1.755 INCHES NOMINAL |
| APGF | DESIGN TYPE | DRY |
| ARNA | COOLANT TYPE | AIR |
| ARND | MUFFLER DESIGN | BAFFLE |
| ARNE | BAFFLE QUANTITY | 2 |
| ARNF | TUBE QUANTITY | 3 |
| ARNG | BODY SHAPE | ROUND |
| ARNH | OPERATING POSITION | VERTICAL |
| ARNJ | INLET LOCATION | LOCATED IN SIDE OF BODY 3.500 IN. FROM CENTER OF INLET TO BODY END SINGLE INLET |
| ARNK | INLET PROJECTION LENGTH | 2.190 INCHES NOMINAL SINGLE INLET2.190 INCHES NOMINAL |
| ARNL | INLET FLANGE SHAPE | SQUARE SINGLE INLET |
| ARNM | INLET FLANGE MOUNTING PROVISION AND QUANTITY | 4 HOLES SINGLE INLET4 HOLES |
| ARNQ | INLET FLANGE MOUNTING PROVISION THREAD SIZE | 3/8-24 SINGLE INLET |
| ARNR | INLET FLANGE MOUNTING PROVISION THREAD SERIES DESIGNATOR | UNF SINGLE INLET |
| ARNS | INLET FLANGE MOUNTING PROVISION THREAD DIRECTION | RIGHT-HAND SINGLE INLET |
| ARNT | INLET FLANGE MOUNTING PROVISION SPACING | 1.880 IN. C TO C DIM. OF TOP THD MTG HOLES,2.620 C TO C DIM. OF BOTTOM THD MTG HOLES SINGLE INLET |
| ARTH | OUTLET CONNECTION TYPE | UNTHREADED 1ST OUTLET |
| ARTJ | OUTLET LOCATION | LOCATED ON SIDE OF BODY 1.500 IN. FROM CENTER OF OUTLET TO BODY END 1ST OUTLET |
| ARTK | OUTLET PROJECTION LENGTH | 2.500 INCHES NOMINAL 1ST OUTLET2.500 INCHES NOMINAL |
| ARWA | OUTLET OUTSIDE DIAMETER | 1.875 INCHES NOMINAL 1ST OUTLET1.875 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | THD CLEANOUT PLUG CENTRALLY LOCATED IN OUTLET END OF BODY,1/2-14 NPT |
| MATT | MATERIAL | STEEL |
| Relevant Components for NSN - 2990-00-460-4440, 2990004604440 | ||||
| 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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