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4720-00-851-1847

Find complete technical information, availability, and procurement data for: 4720-00-851-1847

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4720-00-851-1847
Federal Supply Group
Pipe, Tubing, Hose, and Fittings
Federal Supply Classification
4720 Hose and Flexible Tubing
National Stock Number
4720-00-851-1847
Item Name Code
20311
Assigment Date
01/01/1962 (64 years ago)

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

round cross-sectional shape style, 0.188 inches nominal inside diameter, -67.0 fahrenheit and 450.0 fahrenheit single response temp rating, right-hand 1st end thread direction, 3b 1st end thread class

Product Characteristics

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

Cross-Sectional Shape Style
round
Thread Class
3b 1st end
Thread Direction
right-hand 1st end
Inside Diameter
0.188 inches nominal
Temp Rating
-67.0 fahrenheit and 450.0 fahrenheit single response
Outside Diameter
0.312 inches nominal
Minimum Inside Bending Radius
2.000 inches
Connection Style
swivel nut flare 1st end
End Connection Design
straight 1st end
Connection Type
threaded internal tube 1st end
Features Provided
electrostatic discharge capability and nuts drilled for lockwire and reusable end fittings
Burst Test Pressure
12000.0 pounds per square inch
Layer Composition And Location
outer layer braided corrosion resistant steel wire
Maximum Operating Pressure
1500.0 pounds per square inch
Nominal Thread Size
0.438 inches 1st end
Seat Angle
37.0 degrees 1st end
Hydrostatic Test Pressure
3000.0 pounds per square inch
Outer Covering Environmental Protection
cold resistant and corrosion resistant and fuel resistant
Vacuum In Torr
50.8
Inside Surface Condition
smooth
Measuring Method And Length
13.250 inches nominal overall
Thread Series Designator
unjf 1st end
Specification/Standard Data
81349-mil-h-25579 government specification
Nondefinitive Spec/Std Data
1 class

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FAQs

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

What is the FSCG of the NSN 4720-00-851-1847?
The FSCG of the NSN 4720-00-851-1847 is 4720
Does NSN 4720-00-851-1847 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 4720-00-851-1847 contain precious materials?
Precious metal content is unknown
Does NSN 4720-00-851-1847 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 4720-00-851-1847 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962

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