2990-01-159-7940

Find complete technical information, availability, and procurement data for: 2990-01-159-7940
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-159-7940

Item Name Code

10849

Assigment Date

08/13/1983 (42 years ago)

15.000 inches nominal overall height, 45.440 inches nominal overall length, unthreaded single inlet inlet connection type, 4.810 inches nominal 1st outlet4.810 inches nominal outlet inside diameter, 10.000 inches nominal overall width

Product Characteristics

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

Overall Length: 45.440 inches nominal
Overall Height: 15.000 inches nominal
Overall Width: 10.000 inches nominal
Inlet Connection Type: unthreaded single inlet
Outlet Inside Diameter: 4.810 inches nominal 1st outlet4.810 inches nominal
Design Type: dry
Body Shape: oval
Operating Position: universal
Inlet Location: located at lower end of muffler single inlet
Inlet Projection Length: 12.500 inches nominal single inlet
Inlet Outside Diameter: 5.151 inches nominal single inlet
Inlet Inside Diameter: 4.810 inches nominal single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: located at upper end of muffler 1st outlet
Outlet Outside Diameter: 5.151 inches nominal 1st outlet
Material: steel location not otherwise specified
Surface Treatment: paint

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
681655C1	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-159-7940?

The FSCG of the NSN 2990-01-159-7940 is 2990

Does the NSN 2990-01-159-7940 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-159-7940 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 2990-01-159-7940 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-159-7940 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 2990-01-159-7940 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Aug 13, 1983