1771AS307

View detailed technical data, stock status, and sourcing information for: 1771AS307

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1771AS307
Federal Supply Group
Engine Accessories
National Stock Number
2990-01-361-2496
Item Name Code
10850
Assigment Date
07/11/1992 (34 years ago)

Two or more contact,electrical on a common mounting or mounted on each other. Excludes:brush set,electrical contact; contact set (as modified); and insert,electrical connector.

10.078 inches nominal overall diameter, 4.016 inches nominal outlet inside diameter, dry design type, unthreaded inlet connection type, 31.750 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
31.750 inches nominal
Inlet Connection Type
unthreaded
Overall Diameter
10.078 inches nominal
Outlet Inside Diameter
4.016 inches nominal
Design Type
dry
Inlet Connection Quantity
1
Coolant Type
air
Muffler Design
multipass w/integral spark arrestor
Body Shape
round
Operating Position
horizontal
Inlet Location
on bottom of muffler 4.500 from center of inlet to end
Inlet Projection Length
2.960 inches nominal
Inlet Outside Diameter
4.062 inches nominal
Inlet Inside Diameter
4.016 inches nominal
Outlet Connection Quantity
1
Outlet Connection Type
unthreaded
Outlet Location
centrally located on horizonal end
Outlet Projection Length
3.500 inches nominal
Outlet Flange Shape
round
Outlet Outside Diameter
4.062 inches nominal
Material
steel
Surface Treatment
aluminum alloy

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
1771AS307 Exhaust-Intake Muffler
1771AS307-1 Exhaust-Intake Muffler
FMM10-0528 Exhaust-Intake Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-361-2496?
The FSCG of the NSN 2990-01-361-2496 is 2990
Does the NSN 2990-01-361-2496 have a Schedule B code assigned?
Yes, the Schedule B code is 8708925000
Does NSN 2990-01-361-2496 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 2990-01-361-2496 contain precious materials?
Item does not contain precious metal.
Does NSN 2990-01-361-2496 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 2990-01-361-2496 was assigned to the Federal Catalog?
It was assigned 34 years ago, on Sat, Jul 11, 1992

Professional Distribution

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  • AS9120 Quality Standards
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