Exhaust Muffler NSN 2990-00-316-4901

NSN: 2990-00-316-4901

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Features and Characteristics

Overall Length

81.688 inches

Inlet Connection Type

Unthreaded single inlet

Overall Diameter

39.688 inches

Outlet Inside Diameter

13.625 inches

Design Type

Wet

Coolant Type

Water

Muffler Design

Straight through

Body Shape

Round

Operating Position

Horizontal

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

Inlet Flange Shape

Round

Inlet Flange Mounting Provision And Quantity

19 holes

Inlet Flange Mounting Hole Diameter

1.000 inches

Inlet Flange Mounting Provision Spacing

17-3/8 in. Diameter bolt circle

Inlet Outside Diameter

19.125 inches

Inlet Inside Diameter

13.625 inches

Outlet Connection Type

Unthreaded single inlet

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

Outlet Flange Shape

Round

Outlet Flange Mounting Provision And Quantity

19 studs

Outlet Flange Mounting Hole Diameter

1.000 inches

Outlet Flange Mounting Provision Spacing

17-3/8 in. Diameter bolt circle

Outlet Outside Diameter

19.125 inches

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

Water Inlet Flange Shape

Round

Water Inlet Flange Bolt Hole Spacing

9-1/2 in. Diameter bolt circle

Water Inlet Flange Bolt Hole Quantity

Water Inlet Flange Bolt Hole Diameter

0.875 inches

Water Inlet Outside Diameter

11.000 inches

Water Inlet Inside Diameter

6.000 inches

Water Outlet Connection Type

Flange

Water Outlet Quantity

Water Outlet Location

Near exhaust outlet toward center of muffler

Water Outlet Projection Length

24.063 inches

Water Outlet Flange Shape

Square

Water Outlet Flange Bolt Circle Diameter

9.500 inches

Water Outlet Flange Bolt Hole Quantity

Water Outlet Flange Bolt Hole Diameter

0.875 inches

Water Outlet Outside Diameter

11.000 inches

Water Outlet Inside Diameter

6.000 inches

Hand Hole Quantity

Material

Nickel-copper, mil-n-894 or steel, mil-s-853

Material

Nickel-copper, mil-n-894 or steel, mil-s-853

Surface Treatment

Porcelain enamel

Reference Number Differentiating Characteristics

Port

FSC

2990 Nonaircraft Miscellaneous Engine Accessories

NIIN

003164901

NSN

2990003164901

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

D1855PC1T040

Cage Code:

81334

Status:

MSDS:

Part Number:

20-3D1855P

Cage Code:

81334

Status:

MSDS:

Part Number:

D1855

Cage Code:

81334

Status:

MSDS:

Part Number:

E1866PC20-3P

Cage Code:

81334

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8708925000
NAICS: 336390
SITC: 78439
Description: Mufflers and exhaust pipes for vehicles, nesoi
End Use (Code 30230):
Other parts and accessories of vehicles

Q & A

Frequently asked questions for NSN 2990-00-316-4901

What are the manufacturers of nsn 2990003164901?

Westcott Snyder Mfg Corp (81334)

Does this nsn 2990003164901 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 2990003164901

Does nsn 2990003164901 contain any precious metals?
No precious metal content.

Does nsn 2990003164901 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 2990003164901?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

10849

FIIG:

T135-C

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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