VB4 Safety Relief Valve
4820-00-438-6638
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Official Item Classification
- Name
- Safety Relief Valve
- Part Number
- VB4
- (NSN) National Stock Number
- 4820-00-438-6638
- (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
- 01/01/1963 (63 years ago)
piston flow control device, automatic valve operation method, spring disk loading method, right-hand all ends thread direction, plain,optional end(pipe) all ends connection style
Specs & Compatibility
right-hand all ends
piston
spring
plain,optional end(pipe) all ends
automatic
threaded internal pipe all ends
+3.0 to 15.0 pounds per square inch
0.750 inches all ends
copper alloy body
angle
npt 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