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Exhaust Muffler

NSN: 2990-00-293-6607 | Model: M11781
NSN Properties and Flags
NATO Stock Number
2990-00-293-6607
DEMIL
NO
Overall Length
20.719 inches
Inlet Connection Type
Unthreaded single inlet
Inlet Thread Direction
Right-hand
Overall Diameter
4.750 inches
Outlet Inside Diameter
1.656 inches
Design Type
Dry
Coolant Type
Air
Muffler Design
Straight through
Body Shape
Round
Operating Position
Horizontal
Inlet Location
Centrally located in end section of body
Inlet Projection Length
2.875 inches
Inlet Flange Shape
Round
Inlet Thread Size
1-1/4
Inlet Thread Series Designator
Npt
Inlet Thread Location
External
Inlet Outside Diameter
Any acceptable
Inlet Inside Diameter
Any acceptable
Outlet Connection Type
Unthreaded
Outlet Location
Centrally located in end section of body
Outlet Projection Length
1.813 inches
Outlet Outside Diameter
1.783 inches
Nonconnection Outlet Type And Quantity
3 slotted
Nonconnection Outlet Location
On circ
Nonconnection Outlet Size
1 in. Lg by 1/8 in. W
Special Features
61 internal perforations
Material
Steel
Material
Steel
Surface Treatment
Any acceptable

Pricing and Availability

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NSN 2990-00-293-6607 Datasheet

Supply Class (FSC):
Nonaircraft Miscellaneous Engine Accessories
Cross Reference:
  • M11781
  • M45018
  • 1988A6
Cage Codes:
  • Mancraft Industries Inc (CAGE 54764)
  • Donaldson Company, Inc. (CAGE 18265)
  • Cummins Filtration Inc. (CAGE 76700)
Replacements:
  • 2990-00-293-6607 replaces 2990-00-569-4536
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

U - Precious metal content is unknown

CRITL

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

Freight Information:
  • NMFC:

    000000 - No nmfc freight description

  • WCC:

    593 - Motors and parts, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LCL:

    M - 85.0

  • LTL:

    Z - No rating

  • TCC:

    Z - No special type of cargo code applicable

Questions & Answers:
What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 2990-00-293-6607 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Austria
What is the NIIN of NSN 2990-00-293-6607?
002936607 or 00-293-6607
Does NSN 2990-00-293-6607 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 2990-00-293-6607?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963