Product Details | HYDRAULIC SYSTEM BLEEDER VALVE

4820-01-056-1249 A metallic, threaded, screw-shaped item used in hydraulic brake cylinders, hydraulic power units, missile launching hydraulic systems, and the like, for the purpose of providing a means of releasing air form and/or flushing a hydraulic system. It may be furnished with or without a dust cap. Excludes spring loaded or automatic type air pressure relief valves, and BOLT, FLUID PASSAGE.

Part Alternates: 12012180, 4820-01-056-1249, 01-056-1249, 4820010561249, 010561249

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 17 FEB 1978 01-056-1249

Drawings & Photos | NSN 4820-01-056-1249


Demand History | NSN 4820-01-056-1249

Part Number Request Date QTY Origin
12012180 2013-09-252 3 Pakistan

Cross Reference | NSN 4820-01-056-1249

Part Number Cage Code Manufacturer
12012180 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 4820-01-056-1249

Characteristic Specifications
MATERIAL STEEL COMP 303 BODY PLASTIC FLOW CONTROL DEVICE
STYLE DESIGNATOR A7 ANGLE
FLOW CONTROL DEVICE PLUG
MEDIA FOR WHICH DESIGNED HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 3500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 275.0 DEG CELSIUS SINGLE RESPONSE
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END
CONNECTION STYLE G46A PLAIN 1ST END G60A PLAIN 2ND END
THREAD SERIES DESIGNATOR UNF ALL ENDS
NOMINAL THREAD SIZE 0.313 INCHES ALL ENDS
THREAD CLASS 3A ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
III END ITEM IDENTIFICATION M178 GUN MOUNT
MANUFACTURERS CODE 19207
DESIGN CONTROL REFERENCE 12012180

Restrictions/Controls & Freight Information | NSN 4820-01-056-1249

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.
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
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 BF U.S. Army Armament and Chemical Acquisition and
Logistics Activity
Rock Island, IL 61299-6000
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