4820-01-238-5950
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-238-5950
- (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
- 08/16/1986 (40 years ago)
bolted bonnet attachment method, inside spring bonnet type, 12 1st end bolt hole quantity, disk flow control device, 8 2nd end bolt hole quantity
Specs & Compatibility
disk
inside spring
bolted
12 1st end
8 2nd end
425.0 fahrenheit single response
automatic
round with holes all ends
flange all ends
4.000 inches
+59.0 to 72.0 pounds per square inch
250.0 pounds per square inch single response
10.000 inches 2nd end
12.500 inches 1st end
1.250 inches 2nd end
1.438 inches 1st end
8.000 inches
0.875 inches all ends
7.688 inches
10.625 inches 1st end
7.875 inches 2nd end
plain all ends
copper alloy body
nickel alloy flow control device
nickel alloy seat
steel corrosion resisting stem
water-oil-gas single response
angle flanged ends
Regulatory Compliance
Item does not contain precious metal.
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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