ABT7418

View detailed technical data, stock status, and sourcing information for: ABT7418
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-996-7266

Item Name Code

10849

Assigment Date

10/08/1965 (60 years ago)

0.937 inches nominal 1st outlet0.937 inches nominal outlet inside diameter, 4.250 inches nominal overall diameter, unthreaded 2nd inlet inlet connection type, unthreaded 1st inlet inlet connection type, 12.000 inches nominal overall length

Product Characteristics

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

Overall Length: 12.000 inches nominal
Inlet Connection Type: unthreaded 1st inlet
Inlet Connection Type: unthreaded 2nd inlet
Overall Diameter: 4.250 inches nominal
Outlet Inside Diameter: 0.937 inches nominal 1st outlet0.937 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: baffle
Baffle Quantity: 3
Tube Quantity: 1
Body Shape: round
Operating Position: horizontal
Inlet Location: centrally located in end of body for no. 4 cyl 4th inlet
Inlet Location: on od of body 1.125 in. from end of body for no. 2 cyl 2nd inletcentrally located in end section of body for no. 4. cyl;on od of body 1.125 in. from end of body for no. 2 cyl single inlet
Inlet Projection Length: 1.875 inches nominal 2nd inlet
Inlet Projection Length: 1.625 inches nominal 1st inlet
Inlet Outside Diameter: 1.125 inches nominal 1st inlet
Inlet Outside Diameter: 1.1250 inches nominal 2nd inlet
Inlet Inside Diameter: 1.031 inches nominal 1st inlet
Inlet Inside Diameter: 1.0310 inches nominal 2nd inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: located on od of body 2.000 in. from bottom 1st outlet
Outlet Projection Length: 1.875 inches nominal 1st outlet
Outlet Flange Shape: oval 1st outlet
Outlet Flange Mounting Provision And Quantity: 2 holes 1st outlet
Outlet Flange Mounting Hole Diameter: 0.281 inches nominal 1st outlet
Outlet Outside Diameter: 1.000 inches nominal 1st outlet
Special Features: two mtg brackets welded to od of muffler body
Material: steel location not otherwise specified
Surface Treatment: paint
Fsc Application Data: exhaust system,engine,non-aircraft

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
7418	Exhaust Muffler
927145	Exhaust Muffler
ABT7418	Exhaust Muffler
T-7418	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-996-7266?

The FSCG of the NSN 2990-00-996-7266 is 2990

Does the NSN 2990-00-996-7266 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-996-7266 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 2990-00-996-7266 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-996-7266 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 2990-00-996-7266 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, Oct 8, 1965