Product Details | EXHAUST MUFFLER

2990-01-208-7868 00020215600030Airframe Structural Components29900045Miscellaneous Engine Accessories, Nonaircraft

Part Alternates: 44MLBS410385, 2990-01-208-7868, 01-208-7868, 2990012087868, 012087868

Engine Accessories | Miscellaneous Engine Accessories, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 20 MAY 1985 01-208-7868

Demand History | NSN 2990-01-208-7868

Part Number Request Date QTY Origin
2990-01-208-7868 2017-01-10 4 MANUAL

Cross Reference | NSN 2990-01-208-7868

Part Number Cage Code Manufacturer
44MLB(S)4103-85 06101 UNITED STATES COAST GUARD YARD

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Technical Data | NSN 2990-01-208-7868

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING
DESIGN TYPE WET
COOLANT TYPE WATER
MUFFLER DESIGN MULTIPASS
TUBE QUANTITY 4
BODY SHAPE ROUND
OVERALL LENGTH 32.000 INCHES NOMINAL
OVERALL DIAMETER 17.750 INCHES MINIMUM AND
OPERATING POSITION ANY ACCEPTABLE
INLET CONNECTION TYPE FLANGE SINGLE INLET
INLET LOCATION EQUALLY SPACED ON BOTTOM CONVEX 10.500 INS. C TO C SINGLE INLET
INLET PROJECTION LENGTH 2.000 INCHES NOMINAL SINGLE INLET
INLET FLANGE SHAPE ROUND SINGLE INLET
INLET FLANGE MOUNTING PROVISION AND QUANTITY 8 HOLES SINGLE INLET
INLET FLANGE MOUNTING HOLE DIAMETER 0.750 INCHES NOMINAL SINGLE INLET
INLET FLANGE MOUNTING PROVISION SPACING 7.1/2 IN. C TO C DIM. OF BOLT HOLES SINGLE INLET
INLET OUTSIDE DIAMETER 9.000 INCHES NOMINAL SINGLE INLET
INLET INSIDE DIAMETER 6.000 INCHES NOMINAL SINGLE INLET
OUTLET CONNECTION TYPE UNTHREADED SINGLE INLET
OUTLET LOCATION LOCATED ON BOTTOM VERTICAL CENTERED 90 DEGREES FROM INLETS SINGLE INLET
OUTLET PROJECTION LENGTH 4.000 INCHES NOMINAL SINGLE INLET
OUTLET OUTSIDE DIAMETER 6.625 INCHES NOMINAL SINGLE INLET
OUTLET INSIDE DIAMETER 6.000 INCHES NOMINAL SINGLE INLET
SPECIAL FEATURES MIN.THICKNESS OF OUTSIDE SHELL .125 IN{ MAX.EXHAUST OUTLET BACK PRESSURE 5.5 HG AT 800 RPMS{ JACKET WATER FLOW 77 GALS PER MIN. AT 2300 RPMS
III END ITEM IDENTIFICATION USED ON DETROIT DIESEL MODEL 6V-53 ABOARD 44 FT COAST GUARD VESSELS
III CUBIC MEASURE 5.000 CUBIC FEET
MANUFACTURERS CODE 06101
DESIGN CONTROL REFERENCE 44MLB(S)4103-85

Restrictions/Controls & Freight Information | NSN 2990-01-208-7868

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information