4820-01-266-1324
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-266-1324
- (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
- 10/21/1987 (38 years ago)
disk flow control device, spring disk loading method, inside spring bonnet type, 4 all ends bolt hole quantity, union bonnet attachment method
Specs & Compatibility
disk
inside spring
union
spring
4 all ends
400.0 fahrenheit 2nd response
650.0 fahrenheit 1st response
automatic
round with holes all ends
flange all ends
0.500 inches
+65.0 to 84.0 pounds per square inch
120.0 pounds per square inch 1st response
180.0 pounds per square inch 2nd response
3.500 inches 2nd end
4.250 inches 1st end
0.438 inches 2nd end
0.562 inches 1st end
3.312 inches
0.625 inches all ends
3.250 inches
2.375 inches 2nd end
3.125 inches 1st end
raised straight all ends
0.062 inches 1st end
0.250 inches 2nd end
1.375 inches 2nd end
2.000 inches 1st end
steel body
steel corrosion resisting flow control device
steel corrosion resisting seat
steel corrosion resisting stem
angle flanged ends
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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