27Z393

View detailed technical data, stock status, and sourcing information for: 27Z393
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-443-4796

Item Name Code

10849

Assigment Date

04/04/1969 (57 years ago)

10.000 inches nominal overall height, unthreaded single inlet inlet connection type, 15.000 inches nominal overall width, 4.000 inches nominal 1st outlet4.000 inches nominal outlet inside diameter, 32.500 inches nominal overall length

Product Characteristics

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

Overall Length: 32.500 inches nominal
Overall Height: 10.000 inches nominal
Overall Width: 15.000 inches nominal
Inlet Connection Type: unthreaded single inlet
Outlet Inside Diameter: 4.000 inches nominal 1st outlet4.000 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: multipass
Tube Quantity: 3
Body Shape: oval
Operating Position: horizontal
Inlet Location: offset located on end ofbody single inlet
Inlet Projection Length: 3.250 inches nominal single inlet3.250 inches nominal
Inlet Inside Diameter: 4.000 inches nominal single inlet4.000 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: offset located on end of body 1st outlet
Outlet Projection Length: 3.250 inches nominal 1st outlet3.250 inches nominal
Material: steel location not otherwise specified
Surface Treatment: aluminum

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-115-8960	No Name Available	07/01/1979

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
27Z393	Exhaust Muffler
447803	Exhaust Muffler
5080B98	Exhaust Muffler
690420R91	Exhaust Muffler
D39	Exhaust Muffler
LDB-86125	Exhaust Muffler
M0M12-0100	Exhaust Muffler
M0M12-0108	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-443-4796?

The FSCG of the NSN 2990-00-443-4796 is 2990

Does the NSN 2990-00-443-4796 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-443-4796 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 2990-00-443-4796 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-443-4796 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 2990-00-443-4796 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Apr 4, 1969