- Home »
- NSN Catalog »
- Valves »
- Nonpowered Valves »
- NSN 4820-00-203-8030
4820-00-203-8030
Description: Safety Relief Valve
Price Quote
Quality Assurance
We are commited to quality and satisfaction as a certified supplier in the aerospace and military industries.
- Certificate of Conformity
- QC Inspection prior to shipping
- On time delivery
- International Shipping Available
- Friendly service to back every order
Export Restrictions
Any part(s) quoted or sold by MilSpec.parts and re-sold (to a third party) CANNOT be sold to a USA embargoed country, company, entity, or person(s). Depending on the ECCN, these commodities may require export license or exception. Diversion contrary to U.S. law is prohibited. Unless otherwise noted, this sale, order or quote may include Munitions List Items (MLI) or Commerce Controlled List Items (CCLI). MLI/CCLI property is controlled by the US Government and in many cases cannot be transferred (exported, sold or given) to a foreign country, a non-US Citizen/National or a non- Permanent US Resident without a valid State/Commerce Department export authorization. It is the responsibility of (the Purchaser) to determine what the applicable requirements may be, to obtain all necessary authorizations, licenses or approvals and are subject to both review and acceptance by MilSpec.parts. The use, disposition, export and re-export of the property covered or included in this sale, order or quote is subject to the provisions of law referenced in End-Use Certificate DLA form 1822, DEC 2001, including, but not limited to, the Arms Export Control Act (22 USC 2751 et seq.); Export Administration Act of 1979 (50 USC App. 2401 et seq.) as contained under Executive Order 12924; International Traffic in Arms Regulations (22 CFR 120 et seq.); Export Administration Regulations (15 CFR 730 et seq.); Foreign Assets Control Regulations (31 CFR 500 et seq.) and the Espionage Act (18 USC 793 et seq.)
4820-00-203-8030 Properties
-
NSN:4820-00-203-8030
-
Description:Safety Relief Valve
-
Shelf Life:N/A
-
DEMIL:NO
-
UOM:1 EA
-
Pipe Size Accommodated:1.500 inches 1st end
-
Thread Direction:Right-hand 1st end
-
Flow Control Device:Poppet
-
Bonnet Type:Exposed spring
-
Bonnet Attachment Method:Threaded
-
Disk Loading Method:Spring
-
Renewable Seat Ring Type:Threaded
-
Bolt Hole Quantity:4 2nd end
-
Maximum Operating Temp:425.0 degrees fahrenheit single response
-
Connection Style:Plain, optional en (pipe) 1st end
-
Valve Operation Method:Automatic or manual
-
Flange Shape:Round with holes 2nd end
-
Connection Type:Threaded internal pipe 1st end
-
Features Provided:Valve stem lock shield
-
Thready Qty Per Inch (tpi):11-1/2 1st end
-
Adjustable Pressure Range:+7.0/+25.0 pounds per square inch
-
Maximum Operating Pressure:100.0 pounds per square inch single response
-
Thread Size:1.500 inches 1st end
-
Outside Diameter:4.500 inches 2nd end
-
Thickness:0.438 inches 2nd end
-
First Connection Face To Centerline Distance:3.062 inches
-
Bolt Hole Diameter:0.562 inches 2nd end
-
Second Connection Face To Centerline Distance:2.188 inches
-
Bolt Circle Diameter:3.375 inches 2nd end
-
Flange Face Design:Plain 2nd end
-
Special Features:Bolt holes in flange to straddle centerlines
-
Material:Nickel alloy flow control device
-
Media For Which Designed:Steam single response
-
Style Designator:Angle flanged ends
-
Thread Series Designator:Npt 1st end

