NSN 4820-01-299-8435

Safety Relief Valve

FSC: 4820     NIIN: 012998435

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Product Characteristics

NSN:
4820012998435
Demilitarization:
NO
INC:
05488
Shelf Life:
N/A
Flow Control Device:
Disk
Bonnet Type:
Packing retaining
Disk Loading Method:
Spring
Bolt Hole Quantity:
8 all ends
Maximum Operating Temp:
450.0 degrees fahrenheit single response
Valve Operation Method:
Automatic
Flange Shape:
Round with holes all ends
Connection Type:
Flange all ends
Valve Size:
4.000 inches
Maximum Operating Pressure:
285.0 pounds per square inch single response
Opening Pressure Setting:
170.0 pounds per square inch
Outside Diameter:
9.000 inches 2nd end
Thickness:
1.000 inches 1st end
Bolt Hole Diameter:
0.875 inches 1st end
Bolt Circle Diameter:
9.500 inches 1st end
Flange Face Design:
Raised straight all ends
Raised Face Height:
0.062 inches all ends
Raised Face Diameter:
8.500 inches 1st end
Material:
Stainless steel seat
Media For Which Designed:
Water-oil-gas single response
Style Designator:
Err-090

Part Numbers

  • 16971-F REV B
    CURTISS-WRIGHT FLOW CONTROL
  • 26PA11-170
    CURTISS-WRIGHT FLOW CONTROL

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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