B1900-5118

View detailed technical data, stock status, and sourcing information for: B1900-5118
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-112-5737

Item Name Code

10849

Assigment Date

05/06/1981 (45 years ago)

A switch which is externally actuated by a thumbwheel and/or pushbutton. A legend or message is visually displayed at each position of the indicating wheel which corresponds to electrically coded output. Electrically coded output is achieved by rotating a set of brush contacts permanently attached to the code indicating wheel, against a stationary commutator which is usually a printed wiring board having electrical pads or contacts which are interconnected by the rotating brush contacts. May have additional electrical components (such as resistors, capacitors, diodes) premounted on that portion of printed wiring board which extends beyond the back of switch housing.

1.625 inches nominal 1st outlet1.625 inches nominal outlet inside diameter, 17.750 inches nominal overall length, dry design type, unthreaded single inlet inlet connection type, 3.000 inches nominal 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: 17.750 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 3.000 inches nominal
Outlet Inside Diameter: 1.625 inches nominal 1st outlet1.625 inches nominal
Design Type: dry
Coolant Type: water
Muffler Design: straight through
Body Shape: round
Operating Position: universal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 3.000 inches nominal single inlet3.000 inches nominal
Inlet Inside Diameter: 1.625 inches nominal single inlet1.625 inches nominal
Inlet Integral Manifold Exhaust Pipe Length: 1.625 inches nominal single inlet1.625 inches nominal
Outlet Connection Type: unthreaded 1st outlet
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 3.000 inches nominal 1st outlet3.000 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
21728	Exhaust Muffler
B1900-5118	Exhaust Muffler
E-W-B1900-5100	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-112-5737?

The FSCG of the NSN 2990-01-112-5737 is 2990

Does the NSN 2990-01-112-5737 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-112-5737 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 2990-01-112-5737 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-01-112-5737 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 2990-01-112-5737 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Wed, May 6, 1981