2990-00-656-7453

Find complete technical information, availability, and procurement data for: 2990-00-656-7453
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-656-7453

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

20.125 inches nominal overall length, flange single inlet inlet connection type, 8.250 inches nominal overall height, 4.500 inches nominal overall diameter, dry design type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 20.125 inches nominal
Overall Height: 8.250 inches nominal
Inlet Connection Type: flange single inlet
Overall Diameter: 4.500 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: baffle
Baffle Quantity: 4
Tube Quantity: 3
Body Shape: oval
Operating Position: horizontal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 0.375 inches nominal single inlet0.375 inches nominal
Inlet Flange Shape: oval single inlet
Inlet Flange Mounting Provision And Quantity: 2 studs single inlet2 studs
Inlet Flange Mounting Stud Length: 1.000 inches nominal single inlet1.000 inches nominal
Inlet Flange Mounting Provision Thread Size: 7/16-14 single inlet
Inlet Flange Mounting Provision Thread Direction: right-hand single inlet
Inlet Flange Mounting Provision Spacing: 3-3/8 in. dia bolt circle single inlet
Outlet Connection Type: flange 1st outlet
Outlet Location: located 2-3/4 in.c to c from horizontal center line 1st outlet
Outlet Projection Length: 6.000 inches nominal 1st outlet6.000 inches nominal
Outlet Flange Shape: oval 1st outlet
Outlet Flange Mounting Provision And Quantity: 2 holes 1st outlet2 holes
Outlet Flange Mounting Hole Diameter: 0.469 inches nominal 1st outlet0.469 inches nominal
Outlet Flange Mounting Provision Spacing: 3-3/8 in. dia bolt circle 1st outlet
Material: steel location not otherwise specified
Surface Treatment: zinc
Fsc Application Data: exhaust system engine,non-aircraft

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
6567453	Exhaust Muffler

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2990-00-656-7453?

The FSCG of the NSN 2990-00-656-7453 is 2990

Does the NSN 2990-00-656-7453 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-656-7453 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2990-00-656-7453 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-656-7453 contain hazardous materials?

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

When the NSN 2990-00-656-7453 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963