2990-01-556-1872

Find complete technical information, availability, and procurement data for: 2990-01-556-1872
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-556-1872

Item Name Code

10849

Assigment Date

09/26/2007 (18 years ago)

The components and items required to operate a complete electronic system for tapping into telephone lines at telephone central offices to listen to and/or record conversation being monitored. Includes monitoring cabinet(s), patching panel(s), and may or may not include recorder(s).

gas, diesel propulsion engines and generator engines end item identification, unthreaded single inlet inlet connection type, 10.040 inches nominal overall diameter, 10.160 inches nominal overall height, wet design type

Product Characteristics

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

Overall Height: 10.160 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 10.040 inches nominal
End Item Identification: gas, diesel propulsion engines and generator engines
Design Type: wet
Coolant Type: water
Muffler Design: directional vane
Body Shape: round
Operating Position: vertical
Inlet Location: centrally located on side section of round body single inlet
Inlet Projection Length: 2.500 inches nominal single inlet2.500 inches nominal
Inlet Flange Shape: round single inlet
Inlet Flange Mounting Hole Diameter: 2.000 inches nominal single inlet2.000 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: located at the rear of the top section from the inlet location 1st outlet
Outlet Projection Length: 2.500 inches nominal 1st outlet2.500 inches nominal
Outlet Flange Shape: round 1st outlet
Outlet Flange Mounting Hole Diameter: 2.000 inches nominal 1st outlet2.000 inches nominal
Part Name Assigned By Controlling Agency: vernalift side-in/top-out wet marine exhaust muffler
Special Features: wet marine exhaust muffler; designed to withstand excessive normal operating pressures; side-in top-out design

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
1500027	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-556-1872?

The FSCG of the NSN 2990-01-556-1872 is 2990

Does the NSN 2990-01-556-1872 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-556-1872 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 2990-01-556-1872 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-556-1872 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 2990-01-556-1872 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Wed, Sep 26, 2007