634178-1

View detailed technical data, stock status, and sourcing information for: 634178-1

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634178-1
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-610-8682
Item Name Code
16989
Assigment Date
01/01/1963 (63 years ago)

flared (tube) 1st end connection style, right-hand 1st end thread direction, 3a 1st end thread class, poppet flow control device, manual valve operation method

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 Direction
right-hand 1st end
Flow Control Device
poppet
Connection Style
flared (tube) 1st end
Valve Operation Method
manual
Connection Type
threaded external tube 1st end
Thread Quantity Per Inch
18 1st end
Maximum Operating Pressure
60.0 pounds per square inch 1st response
Nominal Thread Size
0.562 inches 1st end
Seat Angle
37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated
0.375 inches 1st end
Material
aluminum alloy body
Media For Which Designed
fuel/oil, hydrocarbon single response
Surface Treatment
anodize
Style Designator
straight thru
Thread Series Designator
unf 1st 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
634178-1 Poppet Drain Cock
740B8X Poppet Drain Cock

FAQs

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

What is the FSCG of the NSN 4820-00-610-8682?
The FSCG of the NSN 4820-00-610-8682 is 4820
Does the NSN 4820-00-610-8682 have a Schedule B code assigned?
Yes, the Schedule B code is 8481909090
Does NSN 4820-00-610-8682 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 4820-00-610-8682 contain precious materials?
Item does not contain precious metal.
Does NSN 4820-00-610-8682 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 4820-00-610-8682 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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