Product Details | CHECK VALVE

4820-01-419-1668 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part Alternates: CKFA3756205A, 150640464616, 150-6404646-16, 4820-01-419-1668, 01-419-1668, 4820014191668, 014191668, 211055226

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 14 SEP 1995 01-419-1668

Drawings & Photos | NSN 4820-01-419-1668


Demand History | NSN 4820-01-419-1668

Part Number Request Date QTY Origin
CKFA3756205A 2025-08-233 6 DIBBS
CKFA3756205A 2025-06-177 4 DIBBS
CKFA3756205A 2025-04-94 8 DIBBS
CKFA3756205A 2025-03-83 8 DIBBS
CKFA3756205A 2024-07-212 9 DIBBS
CKFA3756205A 2024-07-198 9 DIBBS
CKFA3756205A 2024-07-186 11 DIBBS
CKFA3756205A 2024-06-165 5 DIBBS
CKFA3756205A 2023-04-96 3 DIBBS
CKFA3756205A 2022-08-223 3 DIBBS
CKFA3756205A 2022-06-174 3 DIBBS
CKFA3756205A 2022-06-153 4 DIBBS
CKFA3756205A 2021-12-339 1 DIBBS
CKFA3756205A 2021-04-98 1 DIBBS
CKFA3756205A 2020-10-294 2 DIBBS
4820-01-419-1668 2016-05-147 15 DIBBS
4820-01-419-1668 2013-07-205 15 DIBBS
4820-01-419-1668 2013-07-204 15 DIBBS
4820-01-419-1668 2013-01-18 9 DIBBS
4820-01-419-1668 2012-03-89 7 DIBBS
4820-01-419-1668 2012-02-40 4 DIBBS
4820-01-419-1668 2012-01-18 4 DIBBS
4820-01-419-1668 2011-04-110 11 DIBBS
4820-01-419-1668 2009-09-244 19 DIBBS
4820-01-419-1668 2009-07-200 2 DIBBS
4820-01-419-1668 2009-04-103 8 DIBBS

Cross Reference | NSN 4820-01-419-1668

Part Number Cage Code Manufacturer
150-6404646-16 53711 NAVAL SEA SYSTEMS COMMAND
211055226 53711 NAVAL SEA SYSTEMS COMMAND
CKFA3756205A 92555 THE LEE COMPANY

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Technical Data | NSN 4820-01-419-1668

Characteristic Specifications
MATERIAL STEEL COMP 304 BODY STEEL COMP 303 SEAT
STYLE DESIGNATOR A6 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE B46B PLAIN 1ST END
THREAD SERIES DESIGNATOR NPTF 1ST END
NOMINAL THREAD SIZE 0.375 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
MOUNTING POSITION HORIZONTAL
DISK LOADING METHOD SPRING
END ITEM IDENTIFICATION SEAWOLF CLASS SSN

Restrictions/Controls & Freight Information | NSN 4820-01-419-1668

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 051080 FAUCETS,BIBCOCKS,GATES VALVES
Less than car load rating
Less than truck load rating W Rating Variable
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 4820-01-419-1668

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