2131-5394

View detailed technical data, stock status, and sourcing information for: 2131-5394
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-805-2090

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

flange single inlet inlet connection type, 10.000 inches nominal overall diameter, 4.000 inches nominal 1st outlet4.000 inches nominal outlet inside diameter, dry design type, 18.000 inches nominal overall height

Product Characteristics

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

Overall Height: 18.000 inches nominal
Inlet Connection Type: flange single inlet
Overall Diameter: 10.000 inches nominal
Outlet Inside Diameter: 4.000 inches nominal 1st outlet4.000 inches nominal
Design Type: dry
Muffler Design: baffle
Baffle Quantity: 2
Body Shape: round
Operating Position: horizontal
Inlet Location: top of body 6 in. from center of flanged inlet to end of body single inlet
Inlet Flange Shape: square single inlet
Inlet Flange Mounting Provision And Quantity: 4 holes single inlet4 holes
Inlet Flange Mounting Hole Diameter: 0.563 inches nominal single inlet0.563 inches nominal
Inlet Flange Mounting Provision Spacing: 4.125 in. c to c dim. of bolt holes single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located on bottom of body 1.250 in. from end 1st outlet
Outlet Projection Length: 8.000 inches nominal 1st outlet8.000 inches nominal
Outlet Outside Diameter: 4.125 inches nominal 1st outlet4.125 inches nominal
Material: steel location not otherwise specified
Surface Treatment: aluminum
Fsc Application Data: engine accessory,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
02131-5394	Exhaust Muffler
2131-5394	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-805-2090?

The FSCG of the NSN 2990-00-805-2090 is 2990

Does the NSN 2990-00-805-2090 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-805-2090 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 2990-00-805-2090 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-805-2090 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 2990-00-805-2090 was assigned to the Federal Catalog?

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