Product Details | SAFETY RELIEF VALVE

4820-01-647-8307 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: 4706K124 , 4706K87, 627B-2-1/2-2 , 627B2122, 4820-01-647-8307, 01-647-8307, 4820016478307, 016478307

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 2015245 01-647-8307

Demand History | NSN 4820-01-647-8307

Part Number Request Date QTY Origin
4706K124 2023-04-107 9 DIBBS
627B-2-1/2-2 2023-04-107 9 DIBBS
4706K124 2023-04-96 3 DIBBS
627B-2-1/2-2 2023-04-96 3 DIBBS
4706K124 2023-03-85 3 DIBBS
627B-2-1/2-2 2023-03-85 3 DIBBS
4706K124 2023-03-73 1 DIBBS
4706K124 2023-03-73 2 DIBBS
627B-2-1/2-2 2023-03-73 1 DIBBS
627B-2-1/2-2 2023-03-73 2 DIBBS
4706K124 2023-03-72 4 DIBBS
627B-2-1/2-2 2023-03-72 4 DIBBS

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Technical Data | NSN 4820-01-647-8307

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY
STYLE DESIGNATOR ANGLE
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 2.16 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 1.50 INCHES
VALVE SIZE 0.50 INCHES
FLOW CONTROL DEVICE POPPET
MAXIMUM OPERATING PRESSURE 3600.00 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 250.00 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 10.00 GALLONS PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE PLAIN,OPTIONAL END(PIPE) ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 0.50 INCHES ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.50 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD THREADED
OPENING PRESSURE SETTING 35.00 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 10.0 TO 50.0 POUNDS PER SQUARE INCH
III END ITEM IDENTIFICATION R20TMMASP-001
III PART NAME ASSIGNED BY CONTROLLING AGENCY PRESSURE CONTROL VALVE

Restrictions/Controls & Freight Information | NSN 4820-01-647-8307

Category Code Description
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.
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
No Freight Information

Management | NSN 4820-01-647-8307

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.
Materiel Management Aggregation CodeEJTG:BARE BASE MOBILE SHELTERS/EQUIPMENT
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.
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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative