Product Details | SAFETY RELIEF VALVE

4820-01-052-2448 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: 1001001, 1001-001, 1001-001-3/4IN, 100100134IN, 3/4 NO.3L, 34NO3L, 4820-01-052-2448, 01-052-2448, 4820010522448, 010522448

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 12 DEC 1977 01-052-2448

Drawings & Photos | NSN 4820-01-052-2448


Demand History | NSN 4820-01-052-2448

Part Number Request Date QTY Origin
1001001 2017-01-16 25 United States

Cross Reference | NSN 4820-01-052-2448

Part Number Cage Code Manufacturer
1001-001 53423 AUTOMATION D S S INC SUB OF RYAN TECHNOLOGY CORP
1001-001-3/4IN 53423 AUTOMATION D S S INC SUB OF RYAN TECHNOLOGY CORP
3/4 NO.3L 79227 WATTS REGULATOR CO

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Technical Data | NSN 4820-01-052-2448

Characteristic Specifications
MATERIAL COPPER ALLOY BODY PLASTIC FLOW CONTROL DEVICE COPPER ALLOY SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC OR MANUAL
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLE G9 PLAIN 1ST END G46B PLAIN 2ND END
THREAD SERIES DESIGNATOR NPT 1ST END NPT 2ND END
NOMINAL THREAD SIZE 0.750 INCHES 1ST END 0.750 INCHES 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 125.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-052-2448

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 AX Defense Supply Center Columbus
Columbus, OH 43216-5000
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 4820-01-052-2448

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
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
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