Product Details | CHECK VALVE

4820-01-445-8021 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: 8C150, 4820-01-445-8021, 01-445-8021, 4820014458021, 014458021

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 12 JUN 1997 01-445-8021

Drawings & Photos | NSN 4820-01-445-8021


Cross Reference | NSN 4820-01-445-8021

Part Number Cage Code Manufacturer
8C150 82829 ALLEN AIRCRAFT PRODUCTS INC

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Technical Data | NSN 4820-01-445-8021

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING BODY STEEL CORROSION RESISTING FLOW CONTROL DEVICE COPPER PACKING
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-7720,COMP 302 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
STYLE DESIGNATOR A3 STRAIGHT THRU
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP -55.0 DEG CELSIUS 1ST RESPONSE 300.0 DEG CELSIUS 2ND RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLE B45 FLARELESS ALL ENDS
SEAT ANGLE 12.0 DEGREES 1ST END
THREAD SERIES DESIGNATOR UNJF ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
MOUNTING POSITION HORIZONTAL

Restrictions/Controls & Freight Information | NSN 4820-01-445-8021

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:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information