4820-01-320-8856
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-320-8856
- (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
- 06/05/1990 (36 years ago)
4 all ends bolt hole quantity, round with holes all ends flange shape, automatic valve operation method, spring disk loading method, disk flow control device
Specs & Compatibility
disk
spring
4 all ends
automatic
round with holes all ends
flange all ends
0.500 inches
+88.0 to 108.0 pounds per square inch
3.500 inches all ends
3.000 inches
0.438 inches all ends
0.625 inches all ends
2.375 inches all ends
raised straight all ends
0.062 inches all ends
1.375 inches all ends
bronze body
nickel alloy flow control device
nickel alloy seat
qq-n-281 fed spec single material response body
qq-n-281 fed spec single material response seat
straight thru flanged ends note:to be used for valve bodies of one section only.
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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