Product Details | SAFETY RELIEF VALVE

4820-01-442-8339 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: BW/131081, BW131081, 109492, 131081, 3658378, 3KP566, 800155, 4820-01-442-8339, 01-442-8339, 4820014428339, 014428339

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 25 MAR 1997 01-442-8339

Drawings & Photos | NSN 4820-01-442-8339


Demand History | NSN 4820-01-442-8339

Part Number Request Date QTY Origin
3658378 2025-03-86 95 DIBBS
BW/131081 2025-03-86 95 DIBBS
K039542 2025-03-86 95 DIBBS
3658378 2023-06-159 126 DIBBS
BW/131081 2023-06-159 126 DIBBS
K039542 2023-06-159 126 DIBBS
3658378 2020-05-135 208 DIBBS
BW/131081 2020-05-135 208 DIBBS
K03567 2020-05-135 208 DIBBS
4820-01-442-8339 2018-12-361 175 DIBBS
4820-01-442-8339 2018-12-347 171 DIBBS
4820-01-442-8339 2014-03-78 234 DIBBS
4820-01-442-8339 2014-01-14 116 DIBBS
4820-01-442-8339 2013-02-51 89 DIBBS
4820-01-442-8339 2012-09-265 38 DIBBS
4820-01-442-8339 2011-10-300 9 DIBBS
4820-01-442-8339 2011-08-224 31 DIBBS
4820-01-442-8339 2010-07-211 33 DIBBS
4820-01-442-8339 2010-05-140 10 DIBBS
4820-01-442-8339 2010-02-36 12 DIBBS
4820-01-442-8339 2009-01-30 9 DIBBS
4820-01-442-8339 2008-12-343 14 DIBBS
4820-01-442-8339 2008-11-317 9 DIBBS

Cross Reference | NSN 4820-01-442-8339

Part Number Cage Code Manufacturer
109492 06853 BENDIX COMMERCIAL VEHICLE SYSTEMS LLC
131081 06853 BENDIX COMMERCIAL VEHICLE SYSTEMS LLC
3658378 45152 OSHKOSH CORPORATION
3658378 75Q65 OSHKOSH DEFENSE, LLC
3KP566 45152 OSHKOSH CORPORATION
800155 06853 BENDIX COMMERCIAL VEHICLE SYSTEMS LLC
BW/131081 64678 DAIMLER TRUCKS NORTH AMERICA LLC

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Technical Data | NSN 4820-01-442-8339

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING BODY
STYLE DESIGNATOR C10 SCREW-IN CARTRIDGE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED CARTRIDGE ALL ENDS
CONNECTION STYLE G46B PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.500 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING 250.0 POUNDS PER SQUARE INCH
III END ITEM IDENTIFICATION 2320-01-431-1163; TRUCK, LINE HAUL TRACTOR (M915 SERIES)

Restrictions/Controls & Freight Information | NSN 4820-01-442-8339

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 AH Defense Supply Center Columbus
Columbus, OH 43215
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 4820-01-442-8339

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 Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
Category Code Description
Stores Account Code1Marine Corps Stock Fund Account Item.
Materiel Management CodeBAll CommoditiesDefense Logistics Agency, (DLA,)
Echelon Management Code2ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDMU.S. Marine Corps
Service OrganizationMU.S. Marine Corps
ReparabilityZNonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
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