Product Details | SAFETY RELIEF VALVE

4820-01-566-2901 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: 7615 REV E ITEM 2, 7615REVEITEM2, 8075 REV A 04, 807504, 8075-04, 8075REVA04, 4820-01-566-2901, 01-566-2901, 4820015662901, 015662901

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 27 AUG 2008 01-566-2901

Drawings & Photos | NSN 4820-01-566-2901


Demand History | NSN 4820-01-566-2901

Part Number Request Date QTY Origin
8075 REV A 04 2025-10-296 11 DIBBS
8075-04 2025-10-296 11 DIBBS
8075 REV A 04 2024-10-289 13 DIBBS
8075-04 2024-10-289 13 DIBBS
8075 REV A 04 2023-01-12 13 DIBBS
8075-04 2023-01-12 13 DIBBS
8075 REV A 04 2022-03-60 6 DIBBS
8075-04 2022-03-60 6 DIBBS
8075 REV A 04 2020-04-100 12 DIBBS
8075-04 2020-04-100 12 DIBBS
7595-G501 2019-03-78 14 DIBBS
8075 REV A 04 2019-03-78 14 DIBBS
8075-04 2019-03-78 14 DIBBS
7595-G501 2019-03-66 14 DIBBS
8075 REV A 04 2019-03-66 14 DIBBS
8075-04 2019-03-66 14 DIBBS
4820-01-566-2901 2017-07-211 6 DIBBS
4820-01-566-2901 2016-07-203 7 DIBBS
4820-01-566-2901 2015-04-103 12 DIBBS
4820-01-566-2901 2014-08-217 7 DIBBS
4820-01-566-2901 2014-07-202 7 DIBBS
4820-01-566-2901 2012-03-68 5 DIBBS
4820-01-566-2901 2011-11-307 7 DIBBS
4820-01-566-2901 2011-09-266 2 DIBBS
4820-01-566-2901 2009-09-251 2 DIBBS

Cross Reference | NSN 4820-01-566-2901

Part Number Cage Code Manufacturer
7615 REV E ITEM 2 22501 HOWELL LABORATORIES, INC.
8075 REV A 04 22501 HOWELL LABORATORIES, INC.
8075-04 22501 HOWELL LABORATORIES, INC.

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Technical Data | NSN 4820-01-566-2901

Characteristic Specifications
STYLE DESIGNATOR C6 STRAIGHT THRU
VALVE OPERATION METHOD AUTOMATIC
III END ITEM IDENTIFICATION 4820-01-524-6739;VALVE, REGULATING, FLUID PRESSURE;USED ON POTABLE WATER DISINFECTANT GENERATOR MODEL 7060 MKII
III PART NAME ASSIGNED BY CONTROLLING AGENCY VALVE, RELIEF

Restrictions/Controls & Freight Information | NSN 4820-01-566-2901

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
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 HD Naval Inventory Control Point
Mechanicsburg, PA 17055-0788
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 4820-01-566-2901

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