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Technical Data Sheet
F681 ✓ 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 port_style: GASKET SEAL LOCATION NOT OTHERWISE SPECIFIED, overall_width: 3.562 INCHES NOMINAL IN, overall_height: 6.000 INCHES NOMINAL IN, reservoir_type: INTEGRAL, extended_length: 9.031 INCHES NOMINAL IN, actuation_method: DIRECT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-383-4819, 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
F681
NSN: 2530-00-383-4819
FSC: 2530
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
port_styleGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
overall_width3.562 INCHES NOMINAL IN
overall_height6.000 INCHES NOMINAL IN
reservoir_typeINTEGRAL
extended_length9.031 INCHES NOMINAL IN
actuation_methodDIRECT
special_featuresPISTON ROD ENDTHD FEMALE STYLE,1.062 IN. DEEP THD IN
thread_directionUNABLE TO DECODE
compressed_length7.594 INCHES NOMINAL IN
features_providedFILLER PLUG AND RUBBER BOOT
port_thread_class2B LOCATION NOT OTHERWISE SPECIFIED
mounting_provisionUNTHREADED MOUNTING HOLES
NSN2530-00-383-4819
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN F681 MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
PORT LOCATION AND QUANTITY: 1 CYLINDER HEAD END
PORT STYLE: GASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
MOUNTING FACILITY DIAMETER: 0.406 INCHES NOMINAL IN
RESERVOIR TYPE: INTEGRAL
PORT THREAD CLASS: 2B LOCATION NOT OTHERWISE SPECIFIED
FIRST PISTON ROD END THREAD DIAMETER: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MOUNTING PROVISION: UNTHREADED MOUNTING HOLES
TECHNICAL CHARACTERISTICS (FLIS)
PORT LOCATION AND QUANTITY1 CYLINDER HEAD END
PORT STYLEGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
MOUNTING FACILITY DIAMETER0.406 INCHES NOMINAL IN
OVERALL WIDTH3.562 INCHES NOMINAL IN
RESERVOIR TYPEINTEGRAL
PORT THREAD CLASS2B LOCATION NOT OTHERWISE SPECIFIED
FIRST PISTON ROD END THREAD DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MOUNTING PROVISIONUNTHREADED MOUNTING HOLES
ACTUATION METHODDIRECT
MOUNTING PROVISION ARRANGEMENT STYLETHREE HOLE BOLT CIRCLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
174114Interchangeable
interchangeable cross-reference
interchangeable
00725665470493Interchangeable
interchangeable cross-reference
interchangeable
BSF-20Interchangeable
interchangeable cross-reference
interchangeable
225 5-8Interchangeable
interchangeable cross-reference
interchangeable
M681Interchangeable
interchangeable cross-reference
interchangeable
2557114Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is F681?
F681 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace F681?
There are 28 known substitutes for F681: 174114, 00725665470493, BSF-20 and 25 more. Substitute compatibility should be verified for your specific system.
Is F681 still available?
F681 is currently cancelled.
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