559T-4D-45 Safety Relief Valve
4820-00-167-3741
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Official Item Classification
- Name
- Safety Relief Valve
- Part Number
- 559T-4D-45
- (NSN) National Stock Number
- 4820-00-167-3741
- (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
- 11/24/1971 (54 years ago)
poppet flow control device, spring disk loading method, 3a 1st end thread class, right-hand 1st end thread direction, 280.0 fahrenheit single response maximum operating temp
Specs & Compatibility
3a 1st end
right-hand 1st end
poppet
spring
280.0 fahrenheit single response
plain (tube) 1st end
automatic
threaded external tube 1st end
200.0 pounds per square inch single response
0.437 inches 1st end
45.0 pounds per square inch
0.250 inches 1st end
valve size 0.250 in.
steel comp 303se overall
qq-s-764,type 303se-canceled fed spec single material response overall
air 1st response
fuel/oil, hydrocarbon 2nd response
hydrogen 3rd response
straight thru note: to be used for valve bodies of one section only.
unjf 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
Related Hardware Products
| Part Number | Description |
|---|---|
| 2187647 | Safety Relief Valve |
| 2187647-4 | Safety Relief Valve |
| 559T-4D-45 | Safety Relief Valve |