2990-00-078-7892

Find complete technical information, availability, and procurement data for: 2990-00-078-7892
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-078-7892

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

jacketed design type, 5.500 inches nominal overall length, threaded single inlet inlet connection type, right-hand single inlet inlet thread direction, 3.250 inches nominal overall 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: 5.500 inches nominal
Inlet Connection Type: threaded single inlet
Inlet Thread Direction: right-hand single inlet
Overall Diameter: 3.250 inches nominal
Design Type: jacketed
Muffler Design: straight through
Body Shape: round
Operating Position: universal
Inlet Location: in end section of body single inlet
Inlet Projection Length: 0.500 inches nominal single inlet
Inlet Thread Size: 1/2-14 single inlet
Inlet Thread Series Designator: npt single inlet
Inlet Thread Location: external single inlet
Nonconnection Outlet Type And Quantity: 1 perforated
Nonconnection Outlet Location: located on the outer perimeter of body
Nonconnection Outlet Size: 0.062 in. dia
Special Features: steel tie rods inside body
Material: aluminum alloy location not otherwise specified
Material: plastic phenolic insulation

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-288-2921	No Name Available	07/01/1988

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
05	Exhaust Muffler
M05	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-078-7892?

The FSCG of the NSN 2990-00-078-7892 is 2990

Does the NSN 2990-00-078-7892 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-078-7892 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 2990-00-078-7892 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-078-7892 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 2990-00-078-7892 was assigned to the Federal Catalog?

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