20249 Safety Relief Valve
4820-01-022-8593
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Official Item Classification
- Name
- Safety Relief Valve
- Part Number
- 20249
- (NSN) National Stock Number
- 4820-01-022-8593
- (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
- 06/07/1976 (50 years ago)
forrestal class cv end item identification, right-hand all ends thread direction, disk flow control device, 2b all ends thread class, spring disk loading method
Specs & Compatibility
2b all ends
right-hand all ends
disk
spring
forrestal class cv
gasket seal(boss) all ends
automatic
threaded internal boss all ends
12 all ends
+2000.0 to 3000.0 pounds per square inch
1.062 inches all ends
nickel alloy 400 overall
astm b164-61,class a assn std single material response overall
angle
un all ends
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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