4820-00-446-2695
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-00-446-2695
- (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
- 01/01/1961 (65 years ago)
disk flow control device, 0.750 inches 2nd end nominal pipe size accommodated, 0.750 inches 1st end nominal pipe size accommodated, right-hand 1st end thread direction, right-hand 2nd end thread direction
Specs & Compatibility
0.750 inches 1st end
0.750 inches 2nd end
right-hand 1st end
right-hand 2nd end
disk
inside screw
integral
spring
400.0 fahrenheit single response
plain (pipe) 2nd end
plain,optional end(pipe) 1st end
automatic
threaded external pipe 2nd end
threaded internal pipe 1st end
pressure tight outlet side
14 2nd end
+121.0 to 250.0 pounds per square inch
300.0 pounds per square inch single response
0.750 inches 2nd end
0.750 inches 1st end
copper alloy body
copper alloy flow control device
copper alloy seat
steel corrosion resisting stem
qq-c-390 fed spec single material response body
qq-c-390 fed spec single material response seat
qq-c-390 fed spec single material response flow control device
oil 1st response
steam 2nd response
water, fresh 3rd response
angle
npt 2nd end
npt 1st end
Regulatory Compliance
Precious metal content is unknown
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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