Product Details | SAFETY RELIEF VALVE

4820-01-353-8460 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: A3412, A341-2, 6307323002, 6307323-002, 4820-01-353-8460, 01-353-8460, 4820013538460, 013538460

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 19 FEB 1992 01-353-8460

Drawings & Photos | NSN 4820-01-353-8460


Demand History | NSN 4820-01-353-8460

Part Number Request Date QTY Origin
6307323-002 2025-08-233 4 DIBBS
A341-2 2025-08-233 4 DIBBS
6307323-002 2023-09-250 7 DIBBS
A341-2 2023-09-250 7 DIBBS
6307323-002 2023-08-213 4 DIBBS
A341-2 2023-08-213 4 DIBBS
6307323-002 2022-12-363 11 DIBBS
A341-2 2022-12-363 11 DIBBS
6307323-002 2022-12-342 3 DIBBS
A341-2 2022-12-342 3 DIBBS
6307323-002 2022-06-167 8 DIBBS
A341-2 2022-06-167 8 DIBBS
6307323-002 2022-04-111 3 DIBBS
A341-2 2022-04-111 3 DIBBS
6307323-002 2021-09-271 5 DIBBS
A341-2 2021-09-271 5 DIBBS
6307323-002 2021-03-62 3 DIBBS
A341-2 2021-03-62 3 DIBBS
6307323-002 2020-10-294 4 DIBBS
A341-2 2020-10-294 4 DIBBS
4820-01-353-8460 2016-05-136 9 DIBBS
4820-01-353-8460 2014-08-233 13 DIBBS
4820-01-353-8460 2014-08-222 13 DIBBS
4820-01-353-8460 2012-12-338 8 DIBBS
4820-01-353-8460 2012-11-334 5 DIBBS
4820-01-353-8460 2010-12-350 10 DIBBS
4820-01-353-8460 2010-12-337 15 DIBBS
4820-01-353-8460 2010-10-285 10 DIBBS
4820-01-353-8460 2010-08-218 23 DIBBS
4820-01-353-8460 2010-08-218 10 DIBBS
4820-01-353-8460 2010-05-121 12 DIBBS
4820-01-353-8460 2010-03-78 11 DIBBS
4820-01-353-8460 2009-10-296 17 DIBBS
4820-01-353-8460 2009-10-288 17 DIBBS
4820-01-353-8460 2009-01-06 52 DIBBS
4820-01-353-8460 2008-12-346 5 DIBBS
4820-01-353-8460 2008-10-284 20 DIBBS
4820-01-353-8460 2008-08-231 15 DIBBS

Cross Reference | NSN 4820-01-353-8460

Part Number Cage Code Manufacturer
6307323-002 53711 NAVAL SEA SYSTEMS COMMAND
6307323-002 97993 GENERAL DYNAMICS DEFENSE SYSTEMS INC.
A341-2 06239 AUSCO,INC.

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Technical Data | NSN 4820-01-353-8460

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT PASSIVATE
STYLE DESIGNATOR C8 STRAIGHT THRU
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING TEMP 125.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 17.0 GALLONS PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL BOSS 1ST END THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLE G43 EXTERNAL SEAT FOR GASKET SEAL 1ST END G45 FLARELESS 2ND END
SEAT ANGLE 37.0 DEGREES 1ST END 24.0 DEGREES 2ND END
THREAD SERIES DESIGNATOR UNJ ALL ENDS
NOMINAL THREAD SIZE 0.750 INCHES 1ST END 1.312 INCHES 2ND END
THREAD QUANTITY PER INCH 16 1ST END 12 2ND END
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 115.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-353-8460

Category Code Description
Shelf-Life Code:W120 months
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
Less than truck load rating P 77.5
Water commodity Code 594 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 V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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 4820-01-353-8460

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 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 CodeW120 months
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 CodeW120 months
Purchasing QTY
UOM
1
EA : Each