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Technical Data Sheet
MC138 ✓ 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: IRON CAST BODY, port_style: INVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED, overall_width: 5.750 INCHES NOMINAL IN, overall_height: 5.500 INCHES NOMINAL IN, reservoir_type: INTEGRAL, actuation_method: DIRECT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-873-2869, 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
MC138
NSN: 2530-00-873-2869
FSC: 2530
CAGE: 66614 — TRW INC REPLACEMENT PARTS DIV (USA)
SPECIFICATIONS
materialIRON CAST BODY
port_styleINVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED
overall_width5.750 INCHES NOMINAL IN
overall_height5.500 INCHES NOMINAL IN
reservoir_typeINTEGRAL
actuation_methodDIRECT
special_featuresSINGLE RESERVOIR,TWIN CYLINDER FOR BRAKE AND CLUTCH,1.000 BORE DIA ON CLUTCH SIDE
features_providedRUBBER BOOT
port_thread_class2B LOCATION NOT OTHERWISE SPECIFIED
seat_angle_in_deg42.0 LOCATION NOT OTHERWISE SPECIFIED
mounting_provisionUNTHREADED MOUNTING HOLES
port_thread_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN2530-00-873-2869
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN MC138 MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
SEAT ANGLE IN DEG: 42.0 LOCATION NOT OTHERWISE SPECIFIED
STOPLIGHT SWITCH NOMINAL PIPE THREAD SIZE: 0.125 INCHES IN
MOUNTING TYPE AND LOCATION: FLANGE PISTON ROD END
STOPLIGHT SWITCH THREAD SERIES DESIGNATOR: NPT
PORT THREAD CLASS: 2B LOCATION NOT OTHERWISE SPECIFIED
MOUNTING FACILITY DIAMETER: 0.405 INCHES NOMINAL IN
STRAIGHT BORE INSIDE DIAMETER: 1.125 INCHES NOMINAL IN
MOUNTING PROVISION ARRANGEMENT STYLE: FOUR HOLE RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE IN DEG42.0 LOCATION NOT OTHERWISE SPECIFIED
STOPLIGHT SWITCH NOMINAL PIPE THREAD SIZE0.125 INCHES IN
MOUNTING TYPE AND LOCATIONFLANGE PISTON ROD END
STOPLIGHT SWITCH THREAD SERIES DESIGNATORNPT
PORT THREAD CLASS2B LOCATION NOT OTHERWISE SPECIFIED
MOUNTING FACILITY DIAMETER0.405 INCHES NOMINAL IN
STRAIGHT BORE INSIDE DIAMETER1.125 INCHES NOMINAL IN
MOUNTING PROVISION ARRANGEMENT STYLEFOUR HOLE RECTANGULAR
PORT STYLEINVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED
FEATURES PROVIDEDRUBBER BOOT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
36154Interchangeable
px2-300d 4TB
interchangeable
L-6493-1Interchangeable
interchangeable cross-reference
interchangeable
MS35338-41Interchangeable
interchangeable cross-reference
interchangeable
AN935C6Interchangeable
interchangeable cross-reference
interchangeable
GT805H18-3AInterchangeable
interchangeable cross-reference
interchangeable
D15-561UPC484Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MC138?
MC138 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace MC138?
There are 26 known substitutes for MC138: 36154, L-6493-1, MS35338-41 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MC138?
MC138 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-873-2869. This indicates validated use in U.S. government and defense supply chains.
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