Product Details | SAFETY RELIEF VALVE

4820-01-271-1900 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: YB2385A224 , 1385 1/4 PL4149/4126 30T50, 138514PL4149412630T50, 2385A224, 5010504541, 50-105-0454-1, 4820-01-271-1900, 01-271-1900, 4820012711900, 012711900

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 20 JAN 1988 01-271-1900

Demand History | NSN 4820-01-271-1900

Part Number Request Date QTY Origin
YB2385A224 2024-06-156 5 DIBBS
YB2385A224 2024-05-137 2 DIBBS
YB2385A224 2024-04-116 1 DIBBS
YB2385A224 2023-04-110 3 DIBBS
YB2385A224 2023-02-33 1 DIBBS
YB2385A224 2022-04-108 1 DIBBS
YB2385A224 2022-03-90 1 DIBBS
YB2385A224 2022-02-41 1 DIBBS
YB2385A224 2022-01-30 1 DIBBS
YB2385A224 2021-05-140 1 DIBBS
YB2385A224 2021-05-129 1 DIBBS
4820-01-271-1900 2018-03-67 4 DIBBS
4820-01-271-1900 2014-07-187 4 DIBBS
4820-01-271-1900 2014-02-51 1 DIBBS

Cross Reference | NSN 4820-01-271-1900

Part Number Cage Code Manufacturer
1385 1/4 PL4149/4126 30T50 35795 LESLIE CONTROLS, INC.
2385A224 35795 LESLIE CONTROLS, INC.
50-105-0454-1 17454 TIMKEN GEARS & SERVICES INC. DBA PHILADELPHIA GEAR
YB2385A224 35795 LESLIE CONTROLS, INC.

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Technical Data | NSN 4820-01-271-1900

Characteristic Specifications
MATERIAL COPPER ALLOY BODY
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
ADJUSTABLE PRESSURE RANGE 30.0 TO 50.0 POUNDS PER SQUARE INCH

Restrictions/Controls & Freight Information | NSN 4820-01-271-1900

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 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 4820-01-271-1900

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