2990-00-991-6780

Find complete technical information, availability, and procurement data for: 2990-00-991-6780

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2990-00-991-6780
Federal Supply Group
Engine Accessories
National Stock Number
2990-00-991-6780
Item Name Code
10849
Assigment Date
01/01/1962 (64 years ago)

flange single inlet inlet connection type, baffle muffler design, 1 baffle quantity, air coolant type, dry design type

Product Characteristics

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

Inlet Connection Type
flange single inlet
Design Type
dry
Coolant Type
air
Muffler Design
baffle
Baffle Quantity
1
Operating Position
horizontal
Inlet Flange Shape
oval single inlet
Inlet Flange Mounting Provision And Quantity
4 holes single inlet4 holes
Outlet Connection Type
unthreaded 1st outlet
Outlet Flange Shape
round 1st outlet
Material
steel location not otherwise specified
Surface Treatment
chromium
Surface Treatment Document And Classification
qq-c-320, class 1, type 2 fed spec single treatment response

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
2990-00-805-8602 No Name Available 03/21/1974

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
155A780 Exhaust Muffler
155C780 Exhaust Muffler
8430145 Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-991-6780?
The FSCG of the NSN 2990-00-991-6780 is 2990
Does the NSN 2990-00-991-6780 have a Schedule B code assigned?
Yes, the Schedule B code is 8708925000
Does NSN 2990-00-991-6780 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 2990-00-991-6780 contain precious materials?
Precious metal content is unknown
Does NSN 2990-00-991-6780 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 2990-00-991-6780 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962

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