B5615-1

View detailed technical data, stock status, and sourcing information for: B5615-1
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-293-6818

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

unthreaded 1st inlet inlet connection type, flange 2nd inlet inlet connection type, 3.250 inches nominal overall diameter, 2.656 inches nominal overall length, 1.422 inches nominal 1st outlet1.422 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: 2.656 inches nominal
Inlet Connection Type: flange 2nd inlet
Inlet Connection Type: unthreaded 1st inlet
Overall Diameter: 3.250 inches nominal
Outlet Inside Diameter: 1.422 inches nominal 1st outlet1.422 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: straight through
Body Shape: round
Operating Position: horizontal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 0.875 inches nominal single inlet0.875 inches nominal
Inlet Flange Shape: square single inlet
Inlet Flange Mounting Provision And Quantity: 4 holes single inlet4 holes
Inlet Flange Mounting Hole Diameter: 0.313 inches nominal single inlet0.313 inches nominal
Inlet Flange Mounting Provision Spacing: 2-3/8 in. dia bolt circle single inlet
Inlet Outside Diameter: 1.375 inches nominal single inlet1.375 inches nominal
Inlet Inside Diameter: 1.250 inches nominal single inlet1.250 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 0.719 inches nominal 1st outlet0.719 inches nominal
Outlet Outside Diameter: 2.000 inches nominal 1st outlet2.000 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
7399131	Exhaust Muffler
B5615-1	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-293-6818?

The FSCG of the NSN 2990-00-293-6818 is 2990

Does the NSN 2990-00-293-6818 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-293-6818 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 2990-00-293-6818 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-293-6818 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 2990-00-293-6818 was assigned to the Federal Catalog?

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