790L1

View detailed technical data, stock status, and sourcing information for: 790L1
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-146-0710

Item Name Code

10849

Assigment Date

09/10/1971 (54 years ago)

3.525 inches nominal 1st outlet3.525 inches nominal outlet inside diameter, unthreaded single inlet inlet connection type, 11.500 inches nominal overall width, 8.250 inches nominal overall height, 40.000 inches nominal overall length

Product Characteristics

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

Overall Length: 40.000 inches nominal
Overall Height: 8.250 inches nominal
Overall Width: 11.500 inches nominal
Inlet Connection Type: unthreaded single inlet
Outlet Inside Diameter: 3.525 inches nominal 1st outlet3.525 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: straight through w/baffle
Baffle Quantity: 1
Body Shape: oval
Operating Position: universal
Inlet Location: off-center on end of body single inlet
Inlet Projection Length: 10.625 inches nominal single inlet10.625 inches nominal
Inlet Inside Diameter: 3.525 inches nominal single inlet3.525 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: off-center on end of body 1st outlet
Outlet Projection Length: 10.625 inches nominal 1st outlet10.625 inches nominal
Material: steel location not otherwise specified

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
790L1	Exhaust Muffler
ABT8544	Exhaust Muffler
T-8544	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-146-0710?

The FSCG of the NSN 2990-00-146-0710 is 2990

Does the NSN 2990-00-146-0710 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-146-0710 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 2990-00-146-0710 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-146-0710 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 2990-00-146-0710 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Sep 10, 1971