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PartsTable / COMPONENT / 1749-4
1749-4 ✓ Verified by PartsTable
Clementoni · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include material: PLASTIC BLADE, port_style: INVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED, hub_location: CENTER, overall_width: 4.125 INCHES NOMINAL IN, overall_height: 5.000 INCHES NOMINAL IN, reservoir_type: INTEGRAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-240-9921, 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
1749-4
NSN: 4720-00-240-9921
FSC: 4720
CAGE: 16519 — SENIOR FLEXONICS INC (USA)
SPECIFICATIONS
materialPLASTIC BLADE
port_styleINVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED
hub_locationCENTER
overall_width4.125 INCHES NOMINAL IN
blade_quantity5
overall_height5.000 INCHES NOMINAL IN
reservoir_typeINTEGRAL
actuation_methodDIRECT
special_featuresNLI INSURANCE KIT CONTAINS SUPPORTING REPAIR HARDWARE
attachment_methodBOLT HOLE
features_providedRUBBER BOOT
port_thread_class2B LOCATION NOT OTHERWISE SPECIFIED
NSN4720-00-240-9921
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1749-4 · Clementoni ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
70035-2Interchangeable
interchangeable cross-reference
interchangeable
1769XDMPC14Interchangeable
interchangeable cross-reference
interchangeable
M12703Interchangeable
interchangeable cross-reference
interchangeable
L-57802Interchangeable
interchangeable cross-reference
interchangeable
17490Interchangeable
interchangeable cross-reference
interchangeable
7-074000124Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1749-4?
1749-4 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK manufactured by Clementoni.
What parts can replace 1749-4?
There are 14 known substitutes for 1749-4: 70035-2, 1769XDMPC14, M12703 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1749-4?
1749-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-240-9921. 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