27640-1

View detailed technical data, stock status, and sourcing information for: 27640-1
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-621-2458

Item Name Code

61929

Assigment Date

01/01/1963 (63 years ago)

3b thread class, applicable t.o. 9h8-14-168-3 fig 5 end item identification, manual valve operation method, 20.0 gallons per minute valve discharge flow rate, 4 end connection quantity

Product Characteristics

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

Thread Class: 3b
End Connection Quantity: 4
Valve Discharge Flow Rate: 20.0 gallons per minute
End Item Identification: applicable t.o. 9h8-14-168-3 fig 5
Valve Operation Method: manual
Connection Type: threaded internal boss
Thread Quantity Per Inch: 12
Maximum Operating Pressure And Media For Which Designed: 3000.0 pounds per square inch hydraulic fluid, petroleum base
Nominal Thread Size: 1.063 inches
Body Material: aluminum alloy
Maximum Operating Temp And Media For Which Designed: 160.0 fahrenheit hydraulic fluid, petroleum base
Spool Position Quantity: 3
Spool Quantity: 2
Special Features: manufacturers suggested name is valve assy, hydraulic crossover landing gear and flap control; operating fluid hydraulic fluid mil-h-5606; operating pressure 3000 psig; proof pressure 4500 psig; operating temp range -65 to +160 deg feh; wt 5.25 lbs
Thread Series Designator: unj
Furnished Items And Quantity: 1 lever

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
1U1059	Directional Control Linear Valve
27640-1	Directional Control Linear Valve

FAQs

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

What is the FSCG of the NSN 4820-00-621-2458?

The FSCG of the NSN 4820-00-621-2458 is 4820

Does the NSN 4820-00-621-2458 have a Schedule B code assigned?

Yes, the Schedule B code is 8481809050

Does NSN 4820-00-621-2458 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-621-2458 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-621-2458 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 4820-00-621-2458 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963