NSN 2990-00-038-4341 Repair Services

Exhaust Muffler Overhaul, Repair, and Maintenance

MPN: 1556

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 2990-00-038-4341 exhaust muffler
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NSN 2990000384341


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AS9120B:2015 ISO 9001 Audited and Certified

FAA and EASA Part 145 Certified Repair Stations Ensuring the highest standards of quality and compliance for our clients' needs.

We specialize in the repair and refurbishment of nsn components. From mechanical assemblies to rotor blades, our comprehensive capabilities cover a wide range of NSN parts, providing cost effective solutions to extend the operational life of vital equipment.

NSN 2990-00-038-4341 has been designated as a repairable item and has been included in our capabilities catalog. If you require overhaul or repair services use the form on this page to send us your information. We will provide you with a lead time and price quote.

Repairability and Datasheet

NSN 2990-00-038-4341 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 2990-00-038-4341
Categorization Mufflers and exhaust pipes for vehicles
Repairability Code

Approximate Weight 0.0lb
Overall Length 24.375 inches
Inlet Connection Type Unthreaded single inlet
Overall Diameter 8.000 inches
Outlet Inside Diameter 3.750 inches
Design Type Dry
Coolant Type Any acceptable
Muffler Design Baffle
Baffle Quantity 1
Body Shape Round
Operating Position Horizontal
Inlet Location Located on side of body centered 3-5/8 in. From outlet end of body, on side of body centered 9-3/8 in. From outlet end of body, on side of body centered 15-1/8 in. From outlet end of body and on side of body centered 20-7/8 in. From outlet end of body
Inlet Projection Length 4.000 inches single inlet
Inlet Flange Shape Rectangle
Inlet Flange Mounting Provision And Quantity 5 holes
Inlet Flange Mounting Hole Diameter 0.500 inches
Inlet Flange Mounting Provision Spacing 5-3/4 in. C to c distance between bolt holes
Inlet Outside Diameter 3.750 inches single inlet
Inlet Inside Diameter 3.500 inches single inlet
Outlet Connection Type Unthreaded single inlet
Outlet Location Located 9/16 in. C to c from horizontal center line
Outlet Projection Length 2.000 inches
Outlet Outside Diameter 4.000 inches
Material Steel, stainless
Material Stainless steel
Surface Treatment Any acceptable

Part Numbers

Part Number Company RNAAC (Repair Depot)
1556 STEWART & STEVENSON POWER PRODUCTS XX -