NSN (2990003646781) – NSN 2990-00-364-6781 Parts List

Item Name Muffler Exhaust
Federal Supply Group (FSG) Engine Accessories
Federal Supply Class (FSC) 2990 Miscellaneous Engine Accessories Nonaircraft
National Item Identification Number (NIIN) 00-364-6781 (003646781)
NCB Code USA (00)
Manufacturer Cummins Filtration Inc, Cummins Power Generation Ltd
Part Number Manufacturer Item Name Cage Code RFQ
4728 cummins filtration inc muffler exhaust 76700 RFQ
155A143 cummins power generation ltd muffler exhaust 44940 RFQ
155-0488 cummins power generation ltd muffler exhaust 44940 RFQ
155-29 cummins power generation ltd muffler exhaust 44940 RFQ
8930 cummins power generation ltd muffler exhaust 44940 RFQ
T-4728 cummins filtration inc muffler exhaust 76700 RFQ
155-143 cummins power generation ltd muffler exhaust 44940 RFQ
155B29 cummins power generation ltd muffler exhaust 44940 RFQ

Technical Characteristics of NSN 2990003646781

MRCCriteriaCharacteristic
ABHPOVERALL LENGTH3.375 INCHES NOMINAL
ACQWINLET CONNECTION TYPETHREADED SINGLE INLET
ACRXINLET THREAD DIRECTIONRIGHT-HAND SINGLE INLET
ADAVOVERALL DIAMETER3.250 INCHES NOMINAL
APGFDESIGN TYPEDRY
ARNACOOLANT TYPEAIR
ARNDMUFFLER DESIGNSTRAIGHT THROUGH
ARNFTUBE QUANTITY1
ARNGBODY SHAPEROUND
ARNHOPERATING POSITIONHORIZONTAL
ARNJINLET LOCATIONCENTRALLY LOCATED IN END SECTION OF BODY SINGLE INLET
ARNWINLET THREAD SIZE3/4-14 SINGLE INLET
ARNXINLET THREAD SERIES DESIGNATORNPT SINGLE INLET
ARSPINLET THREAD LOCATIONINTERNAL SINGLE INLET
ARXYNONCONNECTION OUTLET TYPE AND QUANTITY14 PERFORATED
ARXZNONCONNECTION OUTLET LOCATIONIN END SECTION OF BODYOPPOSITE INLET END
ARYANONCONNECTION OUTLET SIZE0.125 IN. DIA
MATTMATERIALSTEEL
SFTTSURFACE TREATMENTPAINT

Relevant Components for NSN - 2990-00-364-6781, 2990003646781
2990-01-536-0912 (2990015360912) 2925-01-269-3859 (2925012693859) 2940-01-597-5286 (2940015975286) 2920-00-496-4663 (2920004964663)
2935-01-213-9714 (2935012139714) 2995-01-319-8755 (2995013198755) 2990-12-178-0081 (2990121780081) 2945-00-876-5908 (2945008765908)
2915-01-131-8740 (2915011318740) 2915-00-488-3801 (2915004883801) 2990-01-167-7192 (2990011677192) 2910-00-941-3256 (2910009413256)

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