2990-00-620-6823

Find complete technical information, availability, and procurement data for: 2990-00-620-6823
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-620-6823

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

A rigid tubular item designed to direct the exhaust gases away from an engine, heater, or the like. For flexible items, see hose, metallic.

45.000 inches nominal overall length, unthreaded single inlet inlet connection type, 22.000 inches maximum overall width, 7.000 inches maximum overall height, 4.500 inches nominal 1st outlet4.500 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: 45.000 inches nominal
Overall Height: 7.000 inches maximum
Overall Width: 22.000 inches maximum
Inlet Connection Type: unthreaded single inlet
Outlet Inside Diameter: 4.500 inches nominal 1st outlet4.500 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: straight through
Tube Quantity: 2
Body Shape: oval
Operating Position: vertical or horizontal
Inlet Location: located 15-15/16 in. from end on flat side of oval above mtg brackets single inlet
Inlet Projection Length: 0.750 inches nominal single inlet0.750 inches nominal
Inlet Outside Diameter: 5.000 inches nominal single inlet5.000 inches nominal
Inlet Inside Diameter: 4.000 inches nominal single inlet4.000 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 15.000 inches nominal 1st outlet15.000 inches nominal
Outlet Outside Diameter: 4.688 inches nominal 1st outlet4.688 inches nominal
Material: steel comp 430 location not otherwise specified
Material Document And Classification: qq-s-766, class 7 fed spec single material response
Surface Treatment: aluminum
Fsc Application Data: engine,nonaircraft

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
7996422	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-620-6823?

The FSCG of the NSN 2990-00-620-6823 is 2990

Does the NSN 2990-00-620-6823 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-620-6823 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 2990-00-620-6823 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-620-6823 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 2990-00-620-6823 was assigned to the Federal Catalog?

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