20028G51SS Safety Relief Valve
4820-01-079-9011
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Official Item Classification
- Name
- Safety Relief Valve
- Part Number
- 20028G51SS
- (NSN) National Stock Number
- 4820-01-079-9011
- (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
- 07/16/1979 (47 years ago)
spring disk loading method, bolted bonnet attachment method, disk flow control device, inside spring bonnet type, 4 all ends bolt hole quantity
Specs & Compatibility
disk
inside spring
bolted
spring
4 all ends
100.0 fahrenheit single response
automatic
round with holes all ends
flange all ends
0.500 inches
+35.0 to 44.0 pounds per square inch
275.0 pounds per square inch single response
3.500 inches all ends
3.344 inches
0.440 inches all ends
3.344 inches
0.620 inches all ends
3.250 inches
2.380 inches all ends
raised with curve and radius all ends
0.180 inches all ends
1.190 inches all ends
steel body
steel flow control device
steel seat
steel stem
astm a351,grade cf8 assn std single material response body
qq-s-763 fed spec single material response flow control device
qq-s-763 fed spec single material response seat
qq-s-763 fed spec single material response stem
gas, natural single response
angle flanged 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
Related Hardware Products
| Part Number | Description |
|---|---|
| 20028 1-2X1-2 35T44PSI | Safety Relief Valve |
| 20028G51SS | Safety Relief Valve |