7-663503

View detailed technical data, stock status, and sourcing information for: 7-663503
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-358-5778

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

dry design type, 5.000 inches nominal overall diameter, 1.515 inches nominal 1st outlet1.515 inches nominal outlet inside diameter, unthreaded single inlet inlet connection type, 17.800 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: 17.800 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 5.000 inches nominal
Outlet Inside Diameter: 1.515 inches nominal 1st outlet1.515 inches nominal
Design Type: dry
Coolant Type: air
Body Shape: round
Operating Position: universal
Inlet Location: on side of bod(1.500 in. c of inlet to end of body single inlet
Inlet Projection Length: 1.100 inches nominal single inlet1.100 inches nominal
Inlet Inside Diameter: 1.515 inches nominal single inlet1.515 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body,elbow type 1st outlet
Outlet Projection Length: 2.000 inches nominal 1st outlet2.000 inches nominal
Special Features: clamp furnished on inlet @and outlet
Material: steel location not otherwise specified

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-328-8734	No Name Available	01/01/1963
2990-00-699-9415	No Name Available	01/01/1963

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
007663503	Exhaust Muffler
4536	Exhaust Muffler
4536-N	Exhaust Muffler
602311	Exhaust Muffler
663503	Exhaust Muffler
7-663503	Exhaust Muffler
ABT4536	Exhaust Muffler
T-4536	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-358-5778?

The FSCG of the NSN 2990-00-358-5778 is 2990

Does the NSN 2990-00-358-5778 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-358-5778 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 2990-00-358-5778 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-358-5778 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 2990-00-358-5778 was assigned to the Federal Catalog?

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