Product Details | EXHAUST MUFFLER

2990-00-316-4901 00020215600030Airframe Structural Components29900045Miscellaneous Engine Accessories, Nonaircraft

Part Alternates: D1855, D1855PC1T040, E1866PC203P, E1866PC20-3P, 203D1855P, 20-3D1855P, 2990-00-316-4901, 00-316-4901, 2990003164901, 003164901

Engine Accessories | Miscellaneous Engine Accessories, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 01 JAN 1963 00-316-4901

Cross Reference | NSN 2990-00-316-4901

Part Number Cage Code Manufacturer
20-3D1855P 81334 WESTCOTT SNYDER MFG CORP
D1855 81334 WESTCOTT SNYDER MFG CORP
D1855PC1T040 81334 WESTCOTT SNYDER MFG CORP
E1866PC20-3P 81334 WESTCOTT SNYDER MFG CORP

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Technical Data | NSN 2990-00-316-4901

Characteristic Specifications
MATERIAL NICKEL-COPPER,MIL-N-894 OR STEEL,MIL-S-853
SURFACE TREATMENT PORCELAIN ENAMEL
DESIGN TYPE WET
COOLANT TYPE WATER
MUFFLER DESIGN STRAIGHT THROUGH
BODY SHAPE ROUND
OVERALL LENGTH 81.688 INCHES NOMINAL
OVERALL DIAMETER 39.688 INCHES NOMINAL
OPERATING POSITION HORIZONTAL
INLET CONNECTION TYPE UNTHREADED 1ST CONNECTION FLANGE 2ND CONNECTION
INLET LOCATION LOCATED 24-1/2 IN. FROM CENTER TO FLAT END OF MUFFLER ON LEFT SIDE LOOKING AFT
INLET PROJECTION LENGTH 24.000 INCHES NOMINAL
INLET FLANGE SHAPE ROUND
INLET FLANGE MOUNTING PROVISION AND QUANTITY 19 HOLES
INLET FLANGE MOUNTING HOLE DIAMETER 1.000 INCHES NOMINAL
INLET FLANGE MOUNTING PROVISION SPACING 17-3/8 IN. DIA BOLT CIRCLE
INLET OUTSIDE DIAMETER 19.125 INCHES NOMINAL
INLET INSIDE DIAMETER 13.625 INCHES NOMINAL
OUTLET CONNECTION TYPE UNTHREADED 1ST CONNECTION FLANGE 2ND CONNECTION
OUTLET LOCATION 34-9/16 IN. FROM CENTER LINE OF INLET TO CENTER LINE OF OUTLET ON LEFT SIDE LOOKING AFT
OUTLET PROJECTION LENGTH 24.000 INCHES NOMINAL
OUTLET FLANGE SHAPE ROUND
OUTLET FLANGE MOUNTING PROVISION AND QUANTITY 19 STUDS
OUTLET FLANGE MOUNTING HOLE DIAMETER 1.000 INCHES NOMINAL
OUTLET FLANGE MOUNTING PROVISION SPACING 17-3/8 IN. DIA BOLT CIRCLE
OUTLET OUTSIDE DIAMETER 19.125 INCHES NOMINAL
OUTLET INSIDE DIAMETER 13.625 INCHES NOMINAL
WATER INLET CONNECTION TYPE UNTHREADED
WATER INLET LOCATION CENTER LOCATED 11 IN. FROM CENTER LINE OF EXHAUST INLET
WATER INLET PROJECTION LENGTH 24.063 INCHES NOMINAL
WATER INLET FLANGE SHAPE ROUND
WATER INLET FLANGE BOLT HOLE SPACING 9-1/2 IN. DIA BOLT CIRCLE
WATER INLET FLANGE BOLT HOLE QUANTITY 8
WATER INLET FLANGE BOLT HOLE DIAMETER 0.875 INCHES NOMINAL
WATER INLET OUTSIDE DIAMETER 11.000 INCHES NOMINAL
WATER INLET INSIDE DIAMETER 6.000 INCHES NOMINAL
WATER OUTLET CONNECTION TYPE FLANGE
WATER OUTLET QUANTITY 1
WATER OUTLET LOCATION NEAR EXHAUST OUTLET TOWARD CENTER OF MUFFLER
WATER OUTLET PROJECTION LENGTH 24.063 INCHES NOMINAL
WATER OUTLET FLANGE SHAPE SQUARE
WATER OUTLET FLANGE BOLT CIRCLE DIAMETER 9.500 INCHES NOMINAL
WATER OUTLET FLANGE BOLT HOLE QUANTITY 8
WATER OUTLET FLANGE BOLT HOLE 0.875 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 2990-00-316-4901

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 000000 NO NMFC FREIGHT DESCRIPTION
Less than car load rating M 85
Less than truck load rating Z No Rating
Water commodity Code 593 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 2990-00-316-4901

Category Code Description
Cognizance Codes7HDepot level reparable shipboard and base equipment, assemblies, components and repair parts related to Naval Sea Systems Command equipment
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplyN35Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
AgencyDNDepartment of the Navy
Service OrganizationLLead Service - 22 (Repairable)
ReparabilityHDepot Level Reparable
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each