Product Details | CHECK VALVE

4820-00-541-0452 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: R338, 4820-00-541-0452, 00-541-0452, 4820005410452, 005410452

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-541-0452

Drawings & Photos | NSN 4820-00-541-0452


Cross Reference | NSN 4820-00-541-0452

Part Number Cage Code Manufacturer
R338 81833 TRANSDIGM, INC. DBA AEROCONTROLEX

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Technical Data | NSN 4820-00-541-0452

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY ALUMINUM ALLOY SEAT
SURFACE TREATMENT ANODIZE
STYLE DESIGNATOR A3 STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED AIR SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 5.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPE THREADED INTERNAL BOSS 1ST END
CONNECTION STYLE B4 GASKET SEAL 1ST END
SEAT ANGLE 32.0 DEGREES 1ST END
THREAD SERIES DESIGNATOR UNF 1ST END
NOMINAL THREAD SIZE 0.438 INCHES 1ST END
THREAD QUANTITY PER INCH 20 1ST END
THREAD CLASS 3B 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING
MANUFACTURERS CODE 81833
DESIGN CONTROL REFERENCE R338

Restrictions/Controls & Freight Information | NSN 4820-00-541-0452

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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
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 127220 PRESSURE REG/RED/RELIEF VALVES NOI
Less than car load rating P 77.5
Less than truck load rating P 77.5
Water commodity Code 594 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
Air Special Handling Z No special handling required.
Special Handling Code Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable