Product Details | STOP-CHECK VALVE

4820-01-397-5780 A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also VALVE (1), LIFT-CHECK and VALVE (1), STOP-LIFT-CHECK.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: VGB00059, VGB00059HK, 1828AS179, 1828AS1791, 1828AS179-1, 232694, 4820-01-397-5780, 01-397-5780, 4820013975780, 013975780

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 13 OCT 1994 01-397-5780

Drawings & Photos | NSN 4820-01-397-5780


Demand History | NSN 4820-01-397-5780

Part Number Request Date QTY Origin
4820-01-397-5780 2025-11-333 147 US
4820-01-397-5780 2025-11-332 147 DIBBS
4820-01-397-5780 2025-10-286 4 US
4820-01-397-5780 2025-10-274 4 US
4820-01-397-5780 2025-03-69 1 US
4820-01-397-5780 2023-03-79 6 US
4820-01-397-5780 2023-03-68 2 US
4820-01-397-5780 2023-01-05 6 US
4820-01-397-5780 2022-12-339 20 DIBBS
4820-01-397-5780 2022-07-205 57 DIBBS
4820-01-397-5780 2021-09-262 28 DIBBS
4820-01-397-5780 2021-07-187 20 DIBBS
4820-01-397-5780 2020-03-86 28 DIBBS
4820-01-397-5780 2018-09-260 68 DIBBS
4820-01-397-5780 2018-03-64 42 DIBBS
4820-01-397-5780 2018-01-16 39 DIBBS

Cross Reference | NSN 4820-01-397-5780

Part Number Cage Code Manufacturer
1828AS179 30003 NAVAL AIR SYSTEMS COMMAND
1828AS179-1 30003 NAVAL AIR SYSTEMS COMMAND
232694 99657 MAROTTA CONTROLS, INC.
VGB00059 59375 RGI INC
VGB00059HK 59375 RGI INC

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Technical Data | NSN 4820-01-397-5780

Characteristic Specifications
MATERIAL COPPER ALLOY BODY
STYLE DESIGNATOR A2 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED OXYGEN, GASEOUS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 2640.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 125.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE THREADED EXTERNAL BOSS 1ST END THREADED EXTERNAL TUBE 2ND END
CONNECTION STYLE B43 EXTERNAL SEAT FOR GASKET SEAL 1ST END B42 FLARED 2ND END
SEAT ANGLE 37.0 DEGREES ALL ENDS
THREAD SERIES DESIGNATOR UNF ALL ENDS
NOMINAL THREAD SIZE 0.437 INCHES 1ST END 0.500 INCHES 2ND END
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
MOUNTING POSITION VERTICAL
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD THREADED
SPECIAL FEATURES CLEAN AND PACKAGE FOR OXYGEN SERVICE PER ASTM G93
CRITICALITY CODE JUSTIFICATION FEAT
END ITEM IDENTIFICATION OXYGEN SERVICING UNIT A/U26U-1, GROUND SUPPORT EQUIPMENT FOR THE F/A-18 HORNET AIRCRAFT

Restrictions/Controls & Freight Information | NSN 4820-01-397-5780

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:YThe item does not have a nuclear hardened feature but does have other critical feature(s) 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 4820-01-397-5780

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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each