2990-01-030-2242

Find complete technical information, availability, and procurement data for: 2990-01-030-2242
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-030-2242

Item Name Code

10849

Assigment Date

10/30/1976 (49 years ago)

threaded single inlet inlet connection type, 1.660 inches nominal 1st outlet1.660 inches nominal outlet inside diameter, right-hand single inlet inlet thread direction, 5.000 inches nominal overall diameter, 17.000 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: 17.000 inches nominal
Inlet Connection Type: threaded single inlet
Inlet Thread Direction: right-hand single inlet
Overall Diameter: 5.000 inches nominal
Outlet Inside Diameter: 1.660 inches nominal 1st outlet1.660 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: louver
Baffle Quantity: 2
Tube Quantity: 1
Body Shape: round
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 1.250 inches nominal single inlet1.250 inches nominal
Inlet Thread Size: 1-1/4-11-1/2 single inlet
Inlet Thread Series Designator: npt single inlet
Inlet Thread Location: external single inlet
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 2.000 inches nominal 1st outlet2.000 inches nominal
Special Features: integral spark arrestor,0.500 nps half coupling and 0.500 npt pipe plug at bottom of inlet
Material: steel location not otherwise specified
Surface Treatment: plastic polypropylene

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
9098	Exhaust Muffler
ABT9098	Exhaust Muffler
T-9098	Exhaust Muffler
WD89	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-030-2242?

The FSCG of the NSN 2990-01-030-2242 is 2990

Does the NSN 2990-01-030-2242 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-030-2242 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 2990-01-030-2242 contain precious materials?

Precious metal content is unknown

Does NSN 2990-01-030-2242 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 2990-01-030-2242 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sat, Oct 30, 1976