Product Details | RESTRICTOR CHECK VALVE

4820-00-272-2256 A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a VALVE, CHECK with the exception of the orifice which permits fluid flow in more than one direction.

Part Alternates: 2R01412, 2R0141-2, 749870-103, 4820-00-272-2256, 00-272-2256, 4820002722256, 002722256, 749870103

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 30 JUL 1973 00-272-2256

Drawings & Photos | NSN 4820-00-272-2256


Cross Reference | NSN 4820-00-272-2256

Part Number Cage Code Manufacturer
2R0141-2 26044 SAF INDUSTRIES LLC DBA GAR-KENYON AEROSPACE
749870-103 98897 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS

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Technical Data | NSN 4820-00-272-2256

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING OVERALL
STYLE DESIGNATOR A6 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END
CONNECTION STYLE B45 FLARELESS 1ST END
SEAT ANGLE 12.0 DEGREES 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.250 INCHES 1ST END
THREAD SERIES DESIGNATOR UNJF 1ST END
NOMINAL THREAD SIZE 0.437 INCHES 1ST END
THREAD QUANTITY PER INCH 20 1ST END
THREAD CLASS 3A 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
MOUNTING POSITION HORIZONTAL OR VERTICAL
(NON-CORE DATA) APERTURE DIAMETER 0.070 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 4820-00-272-2256

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:UPrecious metal type is unknown
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 KE Naval ICP
Philadelphia, PA 19111
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 4820-00-272-2256

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 CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each