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WC28851 ✓ 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, bore_type: STRAIGHT, port_style: GASKET SEAL SINGLE PORT, bore_diameter: 1.490 INCHES NOMINAL IN, overall_width: 3.562 INCHES NOMINAL IN, overall_height: 2.125 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 2530-00-678-5122, 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
WC28851
NSN: 2530-00-678-5122
FSC: 2530
CAGE: 66614 — TRW INC REPLACEMENT PARTS DIV (USA)
SPECIFICATIONS
materialSTEEL BODY
bore_typeSTRAIGHT
port_styleGASKET SEAL SINGLE PORT
bore_diameter1.490 INCHES NOMINAL IN
overall_width3.562 INCHES NOMINAL IN
overall_height2.125 INCHES NOMINAL IN
extended_length7.750 INCHES NOMINAL IN
compressed_length6.000 INCHES NOMINAL IN
port_thread_class2B SINGLE PORT
mounting_provisionTHREADED MOUNTING HOLES
first_end_fork_depth0.344 INCHES NOMINAL ALL WORKING ENDS IN
first_end_fork_width0.500 INCHES NOMINAL ALL WORKING ENDS IN
NSN2530-00-678-5122
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN WC28851 MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
•
FIRST END FORK SPAN WIDTH: 0.281 INCHES NOMINAL ALL WORKING ENDS IN
•
MATERIAL: STEEL BODY
•
FIRST PISTON ROD END STYLE: SLOT TYPE ALL WORKING ENDS
•
PORT STYLE: GASKET SEAL SINGLE PORT
•
FIRST END FORK WIDTH: 0.500 INCHES NOMINAL ALL WORKING ENDS IN
•
FIRST END FORK DEPTH: 0.344 INCHES NOMINAL ALL WORKING ENDS IN
•
PORT THREAD QUANTITY PER INCH: 24 SINGLE PORT
•
PORT THREAD CLASS: 2B SINGLE PORT
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END FORK SPAN WIDTH0.281 INCHES NOMINAL ALL WORKING ENDS IN
MATERIALSTEEL BODY
FIRST PISTON ROD END STYLESLOT TYPE ALL WORKING ENDS
PORT STYLEGASKET SEAL SINGLE PORT
FIRST END FORK WIDTH0.500 INCHES NOMINAL ALL WORKING ENDS IN
FIRST END FORK DEPTH0.344 INCHES NOMINAL ALL WORKING ENDS IN
PORT THREAD QUANTITY PER INCH24 SINGLE PORT
PORT THREAD CLASS2B SINGLE PORT
PORT THREAD SERIES DESIGNATORUNF SINGLE PORT
BLEEDING FEATURE QUANTITY1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
3257Interchangeable
interchangeable cross-reference
interchangeable
3257-00Interchangeable
interchangeable cross-reference
interchangeable
USAF325-7Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEA2Interchangeable
interchangeable cross-reference
interchangeable
055552-4Interchangeable
interchangeable cross-reference
interchangeable
DLA8GInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WC28851?
WC28851 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace WC28851?
There are 20 known substitutes for WC28851: 3257, 3257-00, USAF325-7 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WC28851?
WC28851 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-678-5122. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026