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Technical Data Sheet
57F903557-7 ✓ Verified by PartsTable
· 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 ACCUMULATOR,HYDRAULIC is a the manufacturer industrial component. Key specifications include shape: CYLINDRICAL, material: ALUMINUM ALLOY, thread_class: 3B, cubic_capacity: 50.000 CUBIC INCHES, overall_length: 20.375 INCHES NOMINAL IN, separator_type: PISTON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-631-3059, 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
57F903557-7
NSN: 1650-00-631-3059
FSC: 1650
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
shapeCYLINDRICAL
materialALUMINUM ALLOY
thread_class3B
cubic_capacity50.000 CUBIC INCHES
overall_length20.375 INCHES NOMINAL IN
separator_typePISTON
bleeder_openingNOT INCLUDED
overall_diameter2.812 INCHES NOMINAL IN
operating_pressure3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
fsc_application_dataACFT
maximum_fluid_volume47.500 CUBIC INCHES
port_screw_thread_diameter0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
NSN1650-00-631-3059
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ACCUMULATOR,HYDRAULIC TITLE COMPONENT PN 57F903557-7 MFR ACCUMULATOR,HYDRAULIC
KEY FEATURES
THREAD CLASS: 3A A
MATERIAL: STEEL
OVERALL DIAMETER: 2.750 INCHES NOMINAL IN
PORT SCREW THREAD DIAMETER: 0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
BLEEDER OPENING: NOT INCLUDED
CUBIC CAPACITY: 50.000 CUBIC INCHES
OPERATING PRESSURE: 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
MATERIALSTEEL
OVERALL DIAMETER2.750 INCHES NOMINAL IN
PORT SCREW THREAD DIAMETER0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
BLEEDER OPENINGNOT INCLUDED
CUBIC CAPACITY50.000 CUBIC INCHES
OPERATING PRESSURE3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
OVERALL LENGTH12.500 INCHES NOMINAL IN
PORT SCREW THREAD SERIES DESIGNATORUNF
SEPARATOR TYPEPISTON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
1356-583322M1Interchangeable
interchangeable cross-reference
interchangeable
MIL-A-8897Interchangeable
interchangeable cross-reference
interchangeable
57-903557-17Interchangeable
interchangeable cross-reference
interchangeable
MS28797-5Interchangeable
interchangeable cross-reference
interchangeable
1356-633498Interchangeable
interchangeable cross-reference
interchangeable
8421-030Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57F903557-7?
57F903557-7 is a ACCUMULATOR,HYDRAULIC.
What parts can replace 57F903557-7?
There are 15 known substitutes for 57F903557-7: 1356-583322M1, MIL-A-8897, 57-903557-17 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 57F903557-7?
57F903557-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1650-00-631-3059. This indicates validated use in U.S. government and defense supply chains.
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