4820-01-129-1650
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-129-1650
- (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
- 04/01/1982 (44 years ago)
180.0 fahrenheit single response maximum operating temp, streamlined with one brazing ring all ends connection style, los angeles class ssn(688) end item identification, disk flow control device, 1.000 inches all ends nominal pipe size accommodated
Specs & Compatibility
1.000 inches all ends
disk
180.0 fahrenheit single response
los angeles class ssn(688)
streamlined with one brazing ring all ends
automatic
unthreaded internal pipe all ends
+20.0 to 24.0 pounds per square inch
1500.0 pounds per square inch single response
copper alloy body
nickel alloy flow control device
nickel alloy seat
nickel alloy stem
qq-c-390,alloy d4/d/ fed spec single material response body
qq-n-281,class b fed spec single material response flow control device
qq-n-281,class b fed spec single material response seat
qq-n-281,class b fed spec single material response stem
air single response
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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