2990-01-140-8903

Find complete technical information, availability, and procurement data for: 2990-01-140-8903
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-140-8903

Item Name Code

10849

Assigment Date

10/20/1982 (43 years ago)

1.625 inches nominal 1st outlet1.625 inches nominal outlet inside diameter, dry design type, 6.000 inches nominal overall diameter, 21.500 inches nominal overall length, unthreaded single inlet inlet connection 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: 21.500 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 6.000 inches nominal
Outlet Inside Diameter: 1.625 inches nominal 1st outlet1.625 inches nominal
Design Type: dry
Muffler Design: straight through
Body Shape: round
Operating Position: universal
Inlet Location: on side of body 3.500 in. from end single inlet
Inlet Projection Length: 1.000 inches nominal single inlet1.000 inches nominal
Inlet Inside Diameter: 2.000 inches nominal single inlet2.000 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 2.688 inches nominal 1st outlet2.688 inches nominal
Material: steel location not otherwise specified
Surface Treatment: aluminum alloy

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
MAM06-0158	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-140-8903?

The FSCG of the NSN 2990-01-140-8903 is 2990

Does the NSN 2990-01-140-8903 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-140-8903 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 2990-01-140-8903 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-140-8903 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 2990-01-140-8903 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Wed, Oct 20, 1982