Product Details | SAFETY RELIEF VALVE

4820-01-643-1766 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: 033600 , 4820-01-643-1766, 01-643-1766, 4820016431766, 016431766

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 2015082 01-643-1766

Demand History | NSN 4820-01-643-1766

Part Number Request Date QTY Origin
033600 2025-08-219 17 DIBBS
033600 2025-02-51 16 DIBBS
033600 2024-05-134 36 DIBBS
033600 2024-05-123 36 DIBBS
033600 2024-04-95 6 DIBBS
033600 2024-03-88 6 DIBBS
033600 2023-02-47 15 DIBBS
033600 2022-11-318 28 DIBBS
033600 2022-11-306 28 DIBBS
033600 2022-06-179 28 DIBBS
033600 2021-08-231 28 DIBBS
033600 2020-12-345 27 DIBBS
033600 2020-08-219 7 DIBBS
033600 2020-07-203 5 DIBBS
033600 2020-05-150 21 DIBBS
033600 2020-05-149 11 DIBBS
033600 2020-05-135 21 DIBBS
033600 2020-04-112 5 DIBBS
033600 2020-03-86 4 DIBBS
033600 2020-02-44 4 DIBBS
033600 2020-01-09 3 DIBBS
033600 2019-08-241 4 DIBBS
033600 2019-07-199 5 DIBBS
4820-01-643-1766 2018-02-46 24 DIBBS
4820-01-643-1766 2017-10-283 16 DIBBS
4820-01-643-1766 2017-06-155 4 DIBBS
4820-01-643-1766 2017-03-89 2 DIBBS
4820-01-643-1766 2016-10-284 2 DIBBS
4820-01-643-1766 2016-09-262 2 DIBBS
4820-01-643-1766 2016-06-158 3 DIBBS

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Technical Data | NSN 4820-01-643-1766

Characteristic Specifications
III END ITEM IDENTIFICATION COMPRESSOR,AIR
III PART NAME ASSIGNED BY CONTROLLING AGENCY VALVE,SAFETY RELIEF

Restrictions/Controls & Freight Information | NSN 4820-01-643-1766

Category Code Description
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.
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
No Freight Information

Management | NSN 4820-01-643-1766

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