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E681 ✓ 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 body_width: 2.938 INCHES NOMINAL IN, port_style: GASKET SEAL LOCATION NOT OTHERWISE SPECIFIED, body_height: 2.813 INCHES NOMINAL IN, body_length: 0.625 INCHES MAXIMUM IN, overall_width: 3.562 INCHES NOMINAL IN, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-187-0402, 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
E681
NSN: 3455-00-187-0402
FSC: 3455
CAGE: 09058 — BROWN & SHARPE, INC. DIV PRECISION MEASURING INSTRUMENTS, TESA USA (USA)
SPECIFICATIONS
body_width2.938 INCHES NOMINAL IN
port_styleGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
body_height2.813 INCHES NOMINAL IN
body_length0.625 INCHES MAXIMUM IN
overall_width3.562 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
overall_height6.000 INCHES NOMINAL IN
overall_length0.689 INCHES MAXIMUM IN
reservoir_typeINTEGRAL
extended_length9.031 INCHES NOMINAL IN
inductance_typeFIXED
NSN3455-00-187-0402
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN E681 MFR CYLINDER ASSEMBLY,HYDR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
760-1211Interchangeable
interchangeable cross-reference
interchangeable
50-5-8Interchangeable
interchangeable cross-reference
interchangeable
225-5-8Interchangeable
interchangeable cross-reference
interchangeable
22540Interchangeable
interchangeable cross-reference
interchangeable
33728Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E681?
E681 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace E681?
There are 21 known substitutes for E681: 760-1211, 50-5-8, 225-5-8 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E681?
E681 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-187-0402. 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