4820-01-128-2256
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-128-2256
- (FSG) Federal Supply Group
- 48 Valves
- (FSC) Federal Supply Classification
- 4820 Nonpowered Valves
- (INC) Item Name Code
- 05488
- (FIIG) Federal Item Identification Guide
- A046B0
- Date
- 03/18/1982 (44 years ago)
butt weld pipe all ends connection type, beveled (pipe) all ends connection style, 0.500 inches all ends nominal pipe size accommodated, stem flow control device, automatic valve operation method
Specs & Compatibility
0.500 inches all ends
stem
beveled (pipe) all ends
automatic
butt weld pipe all ends
+23.0 to 45.0 pounds per square inch
1500.0 pounds per square inch single response
copper alloy body
nickel alloy seat
steel comp 316 stem
angle
Regulatory Compliance
Item does not contain precious metal.
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0005488
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