2990-00-922-5409

Find complete technical information, availability, and procurement data for: 2990-00-922-5409
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-922-5409

Item Name Code

10849

Assigment Date

04/19/1968 (58 years ago)

10.125 inches nominal overall diameter, unthreaded single inlet inlet connection type, dry design type, 27.000 inches nominal overall length, 3.025 inches nominal 1st outlet3.025 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: 27.000 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 10.125 inches nominal
Outlet Inside Diameter: 3.025 inches nominal 1st outlet3.025 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: straight through w/baffle
Baffle Quantity: 1
Body Shape: round
Operating Position: universal
Inlet Location: centered on end of body single inlet
Inlet Projection Length: 3.500 inches nominal single inlet3.500 inches nominal
Inlet Inside Diameter: 2.650 inches nominal single inlet2.650 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: off-center on end of body 1st outlet
Outlet Projection Length: 3.500 inches nominal 1st outlet3.500 inches nominal
Material: steel location not otherwise specified
Surface Treatment: aluminum

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
033-155170H1	Exhaust Muffler
155170H1	Exhaust Muffler
ABT6553	Exhaust Muffler
T-6553	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-922-5409?

The FSCG of the NSN 2990-00-922-5409 is 2990

Does the NSN 2990-00-922-5409 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-922-5409 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 2990-00-922-5409 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-922-5409 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 2990-00-922-5409 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Apr 19, 1968