MC44

View detailed technical data, stock status, and sourcing information for: MC44
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-027-2214

Item Name Code

10849

Assigment Date

09/12/1976 (49 years ago)

29.375 inches nominal overall length, 4.500 inches nominal overall height, 2.250 inches nominal 1st outlet2.250 inches nominal outlet inside diameter, unthreaded single inlet inlet connection type, 9.750 inches nominal overall width

Product Characteristics

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

Overall Length: 29.375 inches nominal
Overall Height: 4.500 inches nominal
Overall Width: 9.750 inches nominal
Inlet Connection Type: unthreaded single inlet
Outlet Inside Diameter: 2.250 inches nominal 1st outlet2.250 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: multipass
Tube Quantity: 3
Body Shape: oval
Operating Position: horizontal
Inlet Location: offset in end section of body single inlet
Inlet Projection Length: 2.438 inches nominal single inlet2.438 inches nominal
Inlet Inside Diameter: 2.500 inches nominal single inlet2.500 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body opposite inlet end 1st outlet
Outlet Projection Length: 2.438 inches nominal 1st outlet2.438 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
2930	Exhaust Muffler
3828445	Exhaust Muffler
891	Exhaust Muffler
MC44	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-027-2214?

The FSCG of the NSN 2990-01-027-2214 is 2990

Does the NSN 2990-01-027-2214 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-027-2214 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 2990-01-027-2214 contain precious materials?

Precious metal content is unknown

Does NSN 2990-01-027-2214 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 2990-01-027-2214 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sun, Sep 12, 1976