Product Details | SAFETY RELIEF VALVE

4820-00-786-2339 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Part Alternates: U528289, VD10972N, 4820-00-786-2339, 00-786-2339, 4820007862339, 007862339

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1960 00-786-2339

Drawings & Photos | NSN 4820-00-786-2339


Demand History | NSN 4820-00-786-2339

Part Number Request Date QTY Origin
U528289 2024-02-44 4 DIBBS
4820-00-786-2339 2014-05-139 5 DIBBS
4820-00-786-2339 2009-12-363 60 Turkey
4820-00-786-2339 2009-02-34 22 DIBBS

Cross Reference | NSN 4820-00-786-2339

Part Number Cage Code Manufacturer
U528289 78943 TRIUMPH THERMAL SYSTEMS, INC.
VD10972N 80830 AMERICAN STANDARD INC

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Technical Data | NSN 4820-00-786-2339

Characteristic Specifications
MATERIAL COPPER ALLOY BODY COPPER ALLOY SEAT
SURFACE TREATMENT NICKEL
STYLE DESIGNATOR C4 STRAIGHT THRU
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END
CONNECTION STYLE G50 EXTERNAL SEAT FOR GASKET SEAL 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 1.250 INCHES 1ST END
THREAD SERIES DESIGNATOR UNEF 1ST END
NOMINAL THREAD SIZE 1.500 INCHES 1ST END
THREAD QUANTITY PER INCH 18 1ST END
THREAD CLASS 3A 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 5.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
TEST DATA DOCUMENT 78943-U528289 DRAWING

Restrictions/Controls & Freight Information | NSN 4820-00-786-2339

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating P 77.5
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
Air Special Handling Z No special handling required.
Special Handling Code Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-00-786-2339

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Materiel Management Aggregation CodePLSX:GENERAL ELECTRIC JET ENGINES & COMPONENTS, J-47, J-73, J-79, J-93, T-58, T-64, CFM56
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each