9018467

View detailed technical data, stock status, and sourcing information for: 9018467

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9018467
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-812-6231
Item Name Code
05488
Assigment Date
01/01/1962 (64 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

poppet flow control device, right-hand 2nd end thread direction, 3a 2nd end thread class, 3a 1st end thread class, right-hand 1st end thread direction

Product Characteristics

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

Thread Class
3a 1st end
Thread Class
3a 2nd end
Thread Direction
right-hand 1st end
Thread Direction
right-hand 2nd end
Flow Control Device
poppet
Disk Loading Method
spring
Maximum Operating Temp
300.0 fahrenheit single response
Connection Style
flared (tube) 2nd end
Connection Style
gasket seal(boss) 1st end
Valve Operation Method
automatic
Connection Type
threaded external tube 2nd end
Connection Type
threaded internal tube 1st end
Features Provided
pressure tight outlet side
Thread Quantity Per Inch
20 2nd end
Maximum Operating Pressure
2000.0 pounds per square inch single response
Nominal Thread Size
0.437 inches 1st end
Nominal Thread Size
0.438 inches 2nd end
Seat Angle
37.0 degrees 2nd end
Seat Angle
60.0 degrees 1st end
Opening Pressure Setting
975.0 pounds per square inch
Nominal Outside Diameter Tube Accommodated
0.250 inches 2nd end
Nominal Outside Diameter Tube Accommodated
0.250 inches 1st end
Special Features
media for pressure/temp is chemically inert fluids
Material
aluminum alloy 2024 and plastic polytetrafluoroethylene flow control device
Material
aluminum alloy 2024 body
Material
aluminum alloy 2024 seat
Material Document And Classification
qq-a-225/6 fed spec 1st material response flow control device
Material Document And Classification
qq-a-225/6 fed spec single material response body
Material Document And Classification
qq-a-225/6 fed spec single material response seat
Surface Treatment
anodize plate
Thread Series Designator
unf 1st end
Thread Series Designator
unf 2nd end

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
5120A4TB975 Safety Relief Valve
9018467 Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-812-6231?
The FSCG of the NSN 4820-00-812-6231 is 4820
Does the NSN 4820-00-812-6231 have a Schedule B code assigned?
Yes, the Schedule B code is 8481400000
Does NSN 4820-00-812-6231 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 4820-00-812-6231 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-812-6231 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 4820-00-812-6231 was assigned to the Federal Catalog?
It was assigned 64 years ago, on Mon, Jan 1, 1962

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