NSN 4820-00-450-6539

Safety Relief Valve

FSC: 4820     NIIN: 004506539

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Product Characteristics

NSN:
4820004506539
Demilitarization:
NO
INC:
05488
Shelf Life:
N/A
Thread Class:
3a 1st end
Thread Direction:
Right-hand 1st end
Flow Control Device:
Poppet
Disk Loading Method:
Spring
Connection Style:
Flared (tube) 1st end
Valve Operation Method:
Automatic
Connection Type:
Threaded external tube 1st end
Thready Qty Per Inch (tpi):
20 1st end
Thread Size:
0.437 inches 1st end
Seat Angle:
37.0 degrees 1st end
Opening Pressure Setting:
1425.0 pounds per square inch
Outside Diameter Tube Accommodated:
0.250 inches 1st end
Material:
Aluminum alloy seat
Surface Treatment:
Anodize
Surface Treatment Specification:
Mil-a-8625 military specification single treatment response
Style Designator:
Angle
Thread Series Designator:
Unf 1st end

Part Numbers

  • 166L068-3
    NORTHROP GRUMMAN SYSTEMS CORPORATION
  • 4644-1
    PARKER-HANNIFIN CORPORATION

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

8481400000 - Safety or relief valves.

Professional Distribution

  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
  •   AS9120 Quality Standards
  •   100% Quality Inspections
ITAR registered supplier

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