440171 Safety Relief Valve
4820-00-852-5446
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Official Item Classification
- Name
- Safety Relief Valve
- Part Number
- 440171
- (NSN) National Stock Number
- 4820-00-852-5446
- (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
- 11/22/1966 (59 years ago)
spring disk loading method, right-hand 2nd end thread direction, right-hand 1st end thread direction, disk flow control device, 675.0 pounds per hour valve discharge flow rate
Specs & Compatibility
right-hand 1st end
right-hand 2nd end
disk
spring
675.0 pounds per hour
threaded
plain (pipe) 2nd end
plain,optional end(pipe) 1st end
automatic or manual
threaded external pipe 2nd end
threaded internal pipe 1st end
threaded fastener
pressure tight outlet side
0.750 inches 2nd end
0.750 inches 1st end
40.0 pounds per square inch
copper alloy overall
angle
npt 2nd end
npt 1st end
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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