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Technical Data Sheet
11554H ✓ 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

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include material: STEEL BODY, port_style: GASKET SEAL LOCATION NOT OTHERWISE SPECIFIED, overall_width: 2.781 INCHES NOMINAL IN, overall_height: 5.125 INCHES NOMINAL IN, reservoir_type: INTEGRAL, extended_length: 8.688 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-383-4812, 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
11554H
NSN: 2530-00-383-4812
FSC: 2530
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL BODY
port_styleGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
overall_width2.781 INCHES NOMINAL IN
overall_height5.125 INCHES NOMINAL IN
reservoir_typeINTEGRAL
extended_length8.688 INCHES NOMINAL IN
actuation_methodDIRECT
thread_directionUNABLE TO DECODE
compressed_length7.250 INCHES NOMINAL IN
features_providedFILLER PLUG AND RUBBER BOOT
port_thread_class2B LOCATION NOT OTHERWISE SPECIFIED
mounting_provisionTHREADED MOUNTING HOLES
NSN2530-00-383-4812
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN 11554H MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
ACTUATION METHOD: DIRECT
RESERVOIR TYPE: INTEGRAL
PORT THREAD CLASS: 2B LOCATION NOT OTHERWISE SPECIFIED
PORT LOCATION AND QUANTITY: 1 CYLINDER HEAD END
THREAD DIRECTION: UNABLE TO DECODE
FIRST PISTON ROD END THREAD DIAMETER: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MOUNTING FACILITY THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
ACTUATION METHODDIRECT
RESERVOIR TYPEINTEGRAL
PORT THREAD CLASS2B LOCATION NOT OTHERWISE SPECIFIED
PORT LOCATION AND QUANTITY1 CYLINDER HEAD END
THREAD DIRECTIONUNABLE TO DECODE
FIRST PISTON ROD END THREAD DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL HEIGHT5.125 INCHES NOMINAL IN
MOUNTING FACILITY THREAD DIRECTIONRIGHT-HAND
MOUNTING FACILITY THREAD CLASS2B
PORT STYLEGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
172-2Interchangeable
interchangeable cross-reference
interchangeable
A-337Interchangeable
interchangeable cross-reference
interchangeable
55+0382+4725DSInterchangeable
interchangeable cross-reference
interchangeable
RCR20G363JSInterchangeable
interchangeable cross-reference
interchangeable
137-001-4729Interchangeable
interchangeable cross-reference
interchangeable
ST41D25-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11554H?
11554H is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace 11554H?
There are 30 known substitutes for 11554H: 172-2, A-337, 55+0382+4725DS and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11554H?
11554H is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-383-4812. This indicates validated use in U.S. government and defense supply chains.
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