155-916

View detailed technical data, stock status, and sourcing information for: 155-916
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-865-2330

Item Name Code

10849

Assigment Date

10/16/1967 (58 years ago)

4.250 inches nominal overall diameter, 3.312 inches nominal overall length, threaded single inlet inlet connection type, right-hand single inlet inlet thread direction, dry design type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 3.312 inches nominal
Inlet Connection Type: threaded single inlet
Inlet Thread Direction: right-hand single inlet
Overall Diameter: 4.250 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: baffle
Baffle Quantity: 1
Body Shape: round
Operating Position: universal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 0.250 inches nominal single inlet0.250 inches nominal
Inlet Thread Size: 1-11-1/2 single inlet
Inlet Thread Location: internal single inlet
Nonconnection Outlet Type And Quantity: 84 perforated
Nonconnection Outlet Location: located on 185 deg circ
Nonconnection Outlet Size: 1/8 in. dia
Material: steel location not otherwise specified
Surface Treatment: paint

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-444-2012	No Name Available	03/01/1979

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
15-621	Exhaust Muffler
155-0484	Exhaust Muffler
155-0916	Exhaust Muffler
155-484	Exhaust Muffler
155-916	Exhaust Muffler
155B484	Exhaust Muffler
155B916	Exhaust Muffler
4748	Exhaust Muffler
9360	Exhaust Muffler
ABT4748	Exhaust Muffler
ABT9360	Exhaust Muffler
T-4748	Exhaust Muffler
T-9360	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-865-2330?

The FSCG of the NSN 2990-00-865-2330 is 2990

Does the NSN 2990-00-865-2330 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-865-2330 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 2990-00-865-2330 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-865-2330 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 2990-00-865-2330 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Mon, Oct 16, 1967