M8590L

View detailed technical data, stock status, and sourcing information for: M8590L
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-368-6742

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

5.063 inches nominal overall diameter, unthreaded single inlet inlet connection type, 14.375 inches nominal overall length, dry design type, 0.813 inches nominal 1st outlet0.813 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: 14.375 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 5.063 inches nominal
Outlet Inside Diameter: 0.813 inches nominal 1st outlet0.813 inches nominal
Design Type: dry
Muffler Design: baffle
Baffle Quantity: 3
Tube Quantity: 1
Body Shape: round
Operating Position: universal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 1.250 inches nominal single inlet1.250 inches nominal
Inlet Outside Diameter: 1.625 inches nominal single inlet1.625 inches nominal
Inlet Inside Diameter: 1.500 inches nominal single inlet1.500 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: located 1-61/64 in. c to c from horizongal centerline 1st outlet
Outlet Projection Length: 2.125 inches nominal 1st outlet2.125 inches nominal
Outlet Outside Diameter: 0.875 inches nominal 1st outlet0.875 inches nominal
Material: steel location not otherwise specified

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-601-8185	No Name Available	01/01/1963

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
27782	Exhaust Muffler
M8590L	Exhaust Muffler
R101-7-240	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-368-6742?

The FSCG of the NSN 2990-00-368-6742 is 2990

Does the NSN 2990-00-368-6742 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-368-6742 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 2990-00-368-6742 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-368-6742 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 2990-00-368-6742 was assigned to the Federal Catalog?

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