Product Details | SAFETY RELIEF VALVE

4820-00-406-6602 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: 2961, 2961100, 2961-100, 4SC1011, 4SC1093, 4820-00-406-6602, 00-406-6602, 4820004066602, 004066602

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 17 APR 1970 00-406-6602

Drawings & Photos | NSN 4820-00-406-6602


Demand History | NSN 4820-00-406-6602

Part Number Request Date QTY Origin
4820-00-406-6602 2021-11-313 2 United States
2961 2021-05-140 52 DIBBS
2961-100 2021-05-140 52 DIBBS
4SC1011 2021-05-140 52 DIBBS
4SC1093 2021-05-140 52 DIBBS
2961 2021-05-133 67 DIBBS
2961-100 2021-05-133 67 DIBBS
4SC1011 2021-05-133 67 DIBBS
4SC1093 2021-05-133 67 DIBBS
2961 2021-04-118 67 DIBBS
2961-100 2021-04-118 67 DIBBS
4SC1011 2021-04-118 67 DIBBS
4SC1093 2021-04-118 67 DIBBS
2961 2020-04-107 81 DIBBS
2961-100 2020-04-107 81 DIBBS
4SC1011 2020-04-107 81 DIBBS
4SC1093 2020-04-107 81 DIBBS
2961 2019-03-87 42 DIBBS
2961-100 2019-03-87 42 DIBBS
4SC1011 2019-03-87 42 DIBBS
4SC1093 2019-03-87 42 DIBBS
4820-00-406-6602 2018-11-312 28 DIBBS
4820-00-406-6602 2015-04-120 67 DIBBS
4820-00-406-6602 2014-04-93 41 DIBBS
4820-00-406-6602 2013-05-121 28 DIBBS
4820-00-406-6602 2012-03-90 8 DIBBS
4820-00-406-6602 2011-05-137 8 DIBBS

Cross Reference | NSN 4820-00-406-6602

Part Number Cage Code Manufacturer
2961 49576 QUINCY COMPRESSOR DIVISION OF COLTEC INDUSTRIES INC
2961-100 49576 QUINCY COMPRESSOR DIVISION OF COLTEC INDUSTRIES INC
4SC1011 57217 STRIEGEL SUPPLY INC
4SC1093 57217 STRIEGEL SUPPLY INC

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Technical Data | NSN 4820-00-406-6602

Characteristic Specifications
MATERIAL COPPER ALLOY BODY STEEL FLOW CONTROL DEVICE
STYLE DESIGNATOR C3 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED AIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE G46B PLAIN 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 0.250 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD THREADED
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 100.0 POUNDS PER SQUARE INCH
SPECIAL FEATURES ONE EACH RING,ONE EACH SEAL INCLUDED

Restrictions/Controls & Freight Information | NSN 4820-00-406-6602

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
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code AJ U.S. Army Soldier's Biological and Chemical
Command
Natick, MA 01760
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 4820-00-406-6602

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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each