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Exhaust Muffler

NSN: 2990-01-208-7868 | Model: 44MLB(S)4103-85
NSN Properties and Flags
NATO Stock Number
2990-01-208-7868
DEMIL
NO
Overall Length
32.000 inches
Inlet Connection Type
Flange single inlet
Overall Diameter
Between 17.750 inches and 18.000 inches
End Application
Used on detroit diesel model 6v-53 aboard 44 ft coast guard vessels
Outlet Inside Diameter
6.000 inches single inlet
Design Type
Wet
Coolant Type
Water
Muffler Design
Multipass
Tube Quantity
4
Body Shape
Round
Operating Position
Any acceptable
Inlet Location
Equally spaced on bottom convex 10.500 ins. C to c single inlet
Inlet Projection Length
2.000 inches 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 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 single inlet
Inlet Inside Diameter
6.000 inches 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 single inlet
Outlet Outside Diameter
6.625 inches single inlet
Cubic Measure
5.000 cubic feet
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
Material
Stainless steel

Pricing and Availability

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NSN 2990-01-208-7868 Datasheet

Supply Class (FSC):
Nonaircraft Miscellaneous Engine Accessories
Cross Reference:
  • 44MLB(S)4103-85
Cage Codes:
  • United States Coast Guard (CAGE 06101)
Schedule B & Trade:
  • Schedule B: 8708925000 (NAICS 336390)

    Mufflers and exhaust pipes for vehicles, nesoi

  • SITC: 78439

    Parts and accessories n.E.S. For tractors, motor cars and other motor vehicles, trucks, public-transport vehicles and road motor vehicles, n.E.S.

  • End Use: 30230

    Other parts and accessories of vehicles

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 2990-01-208-7868 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
No recorded entities for this stock number.
What is the NIIN of NSN 2990-01-208-7868?
012087868 or 01-208-7868
Does NSN 2990-01-208-7868 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 2990-01-208-7868?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 20, 1985