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Worldwide distributor of NSN parts and consumables located in the USA.

Butterfly Valve

Model / MPN: 979554-1-1 | NSN: 4820-01-159-1268
ITAR Registered seal

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

Product Details
NATO Stock Number
4820-01-159-1268
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Thread Class
3b 3rd end
Thread Class
3b 4th end
Thread Direction
Right-hand 3rd end
Thread Direction
Right-hand 4th end
Maximum Operating Temp
450.0 degrees fahrenheit single response
Connection Style
G4 gasket sea (boss) 3rd end
Connection Style
G4 gasket sea (boss) 4th end
Valve Operation Method
Air
Flange Shape
Round 1st end
Connection Type
Threaded internal boss 3rd end
Connection Type
Threaded internal boss 4th end
Power Drive Operating Pressure
Between 7.5 pounds per square inch and 17.0 pounds per square inch
Thread Size
0.438 inches 4th end
Thread Size
0.562 inches 3rd end
Outside Diameter
5.750 inches 1st end
Thickness
0.105 inches 1st end
Flange Face Design
Recessed straight 1st end
Recess Diameter
5.163 inches 1st end
Recess Depth
0.135 inches 1st end
Material
Stainless steel body
Style Designator
A1 straight thru
Thread Series Designator
Unjf 3rd end
Thread Series Designator
Unjf 4th end
979554 Series Parts

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979554-1-1 Cross Reference