4820-01-246-5977
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-246-5977
- (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
- 12/16/1986 (39 years ago)
bolted bonnet attachment method, 250.0 fahrenheit single response maximum operating temp, inside screw bonnet type, spring disk loading method, disk flow control device
Specs & Compatibility
disk
inside screw
bolted
spring
250.0 fahrenheit single response
streamlined with one brazing ring (tube) all ends
automatic
unthreaded internal tube all ends
+108.0 to 132.0 pounds per square inch
400.0 pounds per square inch single response
0.500 inches all ends
copper alloy body
nickel alloy flow control device
nickel alloy seat
steel corrosion resisting stem
astm a276 assn std single material response stem
astm b-61 assn std single material response body
qq-n-281 fed spec single material response flow control device
qq-n-281 fed spec single material response seat
air 1st response
gas, inert 2nd response
angle
Replacement For
| Part Number | Description | |
|---|---|---|
| 4820-01-156-0521 | No Name Available | 08/09/1991 |
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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