GM42-3

View detailed technical data, stock status, and sourcing information for: GM42-3
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part GM42-3 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-734-2371

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

21.875 inches minimum and 22.125 inches maximum overall length, unthreaded single inlet inlet connection type, 2.005 inches minimum and 2.010 inches maximum 1st outlet outlet inside diameter, dry design type, 5.875 inches minimum and 6.125 inches maximum overall 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: 21.875 inches minimum and 22.125 inches maximum
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 5.875 inches minimum and 6.125 inches maximum
Outlet Inside Diameter: 2.005 inches minimum and 2.010 inches maximum 1st outlet
Design Type: dry
Coolant Type: air
Muffler Design: baffle
Baffle Quantity: 1
Tube Quantity: 1
Body Shape: round
Operating Position: horizontal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 1.250 inches nominal single inlet1.250 inches nominal
Inlet Outside Diameter: 2.625 inches nominal single inlet2.625 inches nominal
Inlet Inside Diameter: 2.505 inches minimum and 2.510 inches maximum single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 1.500 inches nominal 1st outlet1.500 inches nominal
Outlet Outside Diameter: 2.125 inches nominal 1st outlet2.125 inches nominal
Material: steel location not otherwise specified

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
7342371	Exhaust Muffler
GM42-3	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-734-2371?

The FSCG of the NSN 2990-00-734-2371 is 2990

Does the NSN 2990-00-734-2371 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-734-2371 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 2990-00-734-2371 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-734-2371 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 2990-00-734-2371 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963