2990-00-701-3885

Find complete technical information, availability, and procurement data for: 2990-00-701-3885
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-701-3885

Item Name Code

10849

Assigment Date

01/01/1961 (65 years ago)

27.000 inches nominal overall length, dry design type, 8.000 inches nominal overall diameter, unthreaded single inlet inlet connection type, 3.870 inches nominal 1st outlet3.870 inches nominal outlet inside diameter

Product Characteristics

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

Overall Length: 27.000 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 8.000 inches nominal
Outlet Inside Diameter: 3.870 inches nominal 1st outlet3.870 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: baffle
Baffle Quantity: 2
Tube Quantity: 1
Body Shape: round
Operating Position: vertical
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 1.000 inches nominal single inlet1.000 inches nominal
Inlet Outside Diameter: 4.000 inches nominal single inlet4.000 inches nominal
Inlet Inside Diameter: 3.870 inches nominal single inlet3.870 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: on outside of body 21.437 in. from end of body 1st outlet
Outlet Projection Length: 8.500 inches nominal 1st outlet8.500 inches nominal
Outlet Outside Diameter: 4.000 inches nominal 1st outlet4.000 inches nominal
Material: steel comp 347 location not otherwise specified
Material Document And Classification: mil-t-8606, type 1, comp g347 mil spec single material response
Surface Treatment: aluminum
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
2990007013885	Exhaust Muffler
8737992	Exhaust Muffler
MILT806TYPE1	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-701-3885?

The FSCG of the NSN 2990-00-701-3885 is 2990

Does the NSN 2990-00-701-3885 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-701-3885 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 2990-00-701-3885 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-00-701-3885 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 2990-00-701-3885 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961