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Technical Data Sheet
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556-20 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The COOLER,LUBRICATING OIL,ENGINE is a the manufacturer industrial component. Key specifications include style_designator: PLUG, MACHINE, thread_direction: RIGHT-HAND EXTERNAL, end_item_identification: F-35 AIRCRAFT SUPPORT EQUIPMENT, media_for_which_designed: HYDRAULIC FLUID, part_name_assigned_by_controlling_agency: PLUG. This part is cataloged in the Federal Logistics Information System under NSN 2930-00-231-6828, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
556-20
NSN: 2930-00-231-6828
FSC: 2930
CAGE: 5RQL2 — DRS ENVIRONMENTAL SYSTEMS INC (USA)
SPECIFICATIONS
style_designatorPLUG, MACHINE
thread_directionRIGHT-HAND EXTERNAL
end_item_identificationF-35 AIRCRAFT SUPPORT EQUIPMENT
media_for_which_designedHYDRAULIC FLUID
part_name_assigned_by_controlling_agencyPLUG
NSN2930-00-231-6828
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COOLER,LUBRICATING OIL,ENGINE TITLE COMPONENT PN 556-20 MFR COOLER,LUBRICATING OIL
KEY FEATURES
•
DRAIN PLUG LOCATION: SIDE
•
HEAT TRANSFER METHOD: INDIRECT
•
STYLE DESIGNATOR: UPRIGHT STRAIGHT FINNED TYPE
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATION4120-00-063-9574
DRAIN PLUG LOCATIONSIDE
HEAT TRANSFER METHODINDIRECT
STYLE DESIGNATORUPRIGHT STRAIGHT FINNED TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
10131631InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
420413-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
56037-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
27218InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
213.40-2 1/2-CBM/U-C 0-600PSIInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9318224-0001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 556-20?
556-20 is a COOLER,LUBRICATING OIL,ENGINE.
What parts can replace 556-20?
There are 9 known substitutes for 556-20: 10131631, 420413-4, 56037-1 and 6 more. Substitute compatibility should be verified for your specific system.
Is 556-20 still available?
556-20 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026