4820-01-271-0137
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-271-0137
- (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
- 01/16/1988 (38 years ago)
threaded bonnet attachment method, 4 all ends bolt hole quantity, disk flow control device, spring disk loading method, inside screw bonnet type
Specs & Compatibility
disk
inside screw
threaded
spring
4 all ends
180.0 fahrenheit single response
automatic
round with holes all ends
flange all ends
1.250 inches
+12.0 to 25.0 pounds per square inch
300.0 pounds per square inch single response
4.500 inches all ends
0.438 inches all ends
3.250 inches
0.562 inches all ends
3.250 inches
3.375 inches all ends
plain all ends
nickel alloy stem
rubber flow control device
steel uns j03002 body
water, salt 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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