4820-01-311-4975
Safety Relief Valve
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Official Item Classification
- Name
- Safety Relief Valve
- (NSN) National Stock Number
- 4820-01-311-4975
- (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
- 11/29/1989 (36 years ago)
spring disk loading method, threaded renewable seat ring type, union bonnet attachment method, inside spring bonnet type, disk flow control device
Specs & Compatibility
disk
inside spring
union
spring
threaded
150.0 fahrenheit single response
emory s. land class as
socket (tube) all ends
automatic
unthreaded internal tube all ends
+59.0 to 70.0 pounds per square inch
400.0 pounds per square inch single response
1.000 inches all ends
copper alloy body
nickel alloy flow control device
nickel alloy stem
steel seat
water, salt single response
angle
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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