2990-00-931-8078

Find complete technical information, availability, and procurement data for: 2990-00-931-8078
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 2990-00-931-8078 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-931-8078

Item Name Code

10849

Assigment Date

09/21/1966 (59 years ago)

jacketed design type, 2.000 inches nominal 1st outlet outlet inside diameter, 5.000 inches nominal overall diameter, 27.750 inches nominal overall length, unthreaded single inlet inlet connection type

Product Characteristics

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

Overall Length: 27.750 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 5.000 inches nominal
Outlet Inside Diameter: 2.000 inches nominal 1st outlet
Design Type: jacketed
Muffler Design: multipass
Tube Quantity: 3
Body Shape: round
Operating Position: horizontal
Inlet Location: centrally located on end of body single inlet
Inlet Projection Length: 2.375 inches nominal single inlet
Inlet Inside Diameter: 2.500 inches nominal single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located on end of body 1st outlet
Outlet Projection Length: 2.375 inches nominal 1st outlet
Material: asbestos insulation
Material: steel location not otherwise specified

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-288-6430	No Name Available	05/01/1983
2990-00-820-4633	No Name Available	03/03/1972
2990-00-847-9252	No Name Available	07/01/1982
2990-00-855-5540	No Name Available	08/02/1968
2990-00-873-2932	No Name Available	10/24/1971
2990-00-891-3840	No Name Available	12/13/1968

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
1991	Exhaust Muffler
21365	Exhaust Muffler
231488R91	Exhaust Muffler
242148R91	Exhaust Muffler
472E	Exhaust Muffler
737	Exhaust Muffler
873578R91	Exhaust Muffler
933	Exhaust Muffler
IH29	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-931-8078?

The FSCG of the NSN 2990-00-931-8078 is 2990

Does the NSN 2990-00-931-8078 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-931-8078 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 2990-00-931-8078 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-931-8078 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 2990-00-931-8078 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Sep 21, 1966