Product Details | SAFETY RELIEF VALVE

4820-00-554-7951 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: VAGNL1, 14273, 2314417, 231-4417, 5164510937S8, 516-4510937S8, J50, JL50, 4820-00-554-7951, 00-554-7951, 4820005547951, 005547951

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-554-7951

Drawings & Photos | NSN 4820-00-554-7951


Demand History | NSN 4820-00-554-7951

Part Number Request Date QTY Origin
4820-00-554-7951 2018-06-157 10 DIBBS
4820-00-554-7951 2017-12-341 10 DIBBS
14273 2014-01-10 2

Cross Reference | NSN 4820-00-554-7951

Part Number Cage Code Manufacturer
14273 59500 TENNANT COMPANY
231-4417 65459 LANDOLL CORPORATION
516-4510937S8 51563 ROHR, INC DBA GOODRICH AEROSTRUCTURES GROUP
J50 02249 PARKER HANNIFIN CORPORATION DBA GRESEN HYDRAULICS DIV HYDRAULIC
JL50 02249 PARKER HANNIFIN CORPORATION DBA GRESEN HYDRAULICS DIV HYDRAULIC
JL50 09990 PARKER-HANNIFIN CORPORATION DBA HYDRAULIC VALVE DIV
VAGNL1 05643 BARBER-GREENE CO
VAGNL1 0MKW7 MINNPAR, LLC DBA MINNPAR

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Technical Data | NSN 4820-00-554-7951

Characteristic Specifications
MATERIAL IRON CAST BODY STEEL FLOW CONTROL DEVICE STEEL SEAT STEEL STEM
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE BALL
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE G9 PLAIN ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.500 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD THREADED
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 500.0 TO 1500.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED VALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
MANUFACTURERS CODE 02249
DESIGN CONTROL REFERENCE JL50

Restrictions/Controls & Freight Information | NSN 4820-00-554-7951

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:UPrecious metal type is unknown
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
Less than truck load rating P 77.5
Water commodity Code 576 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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4820-00-554-7951

Category Code Description
Materiel Category and Inventory ManagerJ Ground Forces Support Materiel (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityAItem requires special handling or condemnation procedures for specific reasons, such as precious metal content, high dollar value, critical material, or hazardous materiel. Refer to appropriate manuals or directives for specific instructions.
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
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 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
Purchasing QTY
UOM
1
EA : Each