ABT9718

View detailed technical data, stock status, and sourcing information for: ABT9718
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-407-6393

Item Name Code

10849

Assigment Date

07/02/1970 (56 years ago)

21.500 inches nominal overall length, dry design type, 4.750 inches nominal overall diameter, flange single inlet inlet connection type, 1.875 inches nominal 1st outlet1.875 inches nominal outlet inside diameter

Product Characteristics

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

Overall Length: 21.500 inches nominal
Inlet Connection Type: flange single inlet
Overall Diameter: 4.750 inches nominal
Outlet Inside Diameter: 1.875 inches nominal 1st outlet1.875 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: multipass w/integral spark arrestor
Body Shape: round
Operating Position: vertical
Inlet Location: on side near bottom single inlet
Inlet Flange Shape: oval single inlet
Inlet Flange Mounting Provision And Quantity: 2 holes single inlet2 holes
Inlet Flange Mounting Hole Diameter: 0.408 inches nominal single inlet0.408 inches nominal
Inlet Flange Mounting Provision Spacing: 2.688 in. c to c distance of mtg holes single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: in center of top 1st outlet
Outlet Projection Length: 4.500 inches nominal 1st outlet4.500 inches nominal
Outlet Outside Diameter: 2.000 inches nominal 1st outlet2.000 inches nominal
Material: steel location not otherwise specified
Surface Treatment: aluminum

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
13214E6103	Exhaust Muffler
ABT9718	Exhaust Muffler
T-9718	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-407-6393?

The FSCG of the NSN 2990-00-407-6393 is 2990

Does the NSN 2990-00-407-6393 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-407-6393 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 2990-00-407-6393 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-407-6393 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 2990-00-407-6393 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Thu, Jul 2, 1970