2990-00-083-8556

Find complete technical information, availability, and procurement data for: 2990-00-083-8556
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-083-8556

Item Name Code

10849

Assigment Date

12/15/1967 (58 years ago)

dry design type, 4.620 inches nominal overall diameter, 11.900 inches nominal overall length, right-hand single inlet inlet thread direction, threaded 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: 11.900 inches nominal
Inlet Connection Type: threaded single inlet
Inlet Thread Direction: right-hand single inlet
Overall Diameter: 4.620 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: straight through w/baffle
Baffle Quantity: 1
Tube Quantity: 1
Body Shape: round
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 1.800 inches nominal single inlet1.800 inches nominal
Inlet Thread Size: 1-1/4-11-1/2 single inlet
Inlet Thread Series Designator: npt single inlet
Inlet Thread Location: external single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 3.200 inches nominal 1st outlet3.200 inches nominal
Outlet Outside Diameter: 1.344 inches nominal 1st outlet1.344 inches nominal
Material: steel location not otherwise specified
Surface Treatment: paint

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
5096-A	Exhaust Muffler
559418	Exhaust Muffler
T-5096	Exhaust Muffler
WD30D	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-083-8556?

The FSCG of the NSN 2990-00-083-8556 is 2990

Does the NSN 2990-00-083-8556 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-083-8556 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 2990-00-083-8556 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-083-8556 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 2990-00-083-8556 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Dec 15, 1967