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Technical Data Sheet
PartsTable / COMPONENT / M26521-3-120
M26521-3-120 ✓ Verified by PartsTable
— · 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

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include connection_type: THREADED EXTERNAL PIPE FIRST END, inside_diameter: 3.000 INCHES NOMINAL IN, connection_style: PLAIN FIRST END, outside_diameter: 3.594 INCHES NOMINAL IN, thread_direction: RIGHT-HAND FIRST END, burst_test_pressure: 800.0 POUNDS PER SQUARE INCH LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-720-3847, 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
M26521-3-120
NSN: 4720-00-720-3847
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST END
inside_diameter3.000 INCHES NOMINAL IN
connection_stylePLAIN FIRST END
outside_diameter3.594 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
burst_test_pressure800.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size3.000 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSE
thread_series_designatorNPT FIRST END
hydrostatic_test_pressure320.0 POUNDS PER SQUARE INCH LBS
NSN4720-00-720-3847
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: M26521-3-120 · OEM ⚠ 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
KEY FEATURES
•
INSIDE SURFACE CONDITION: SMOOTH
•
BURST TEST PRESSURE: 800.0 POUNDS PER SQUARE INCH LBS
•
MEASURING METHOD AND LENGTH: 120.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
•
END CONNECTION DESIGN: STRAIGHT FIRST END
•
NOMINAL THREAD SIZE: 3.000 INCHES FIRST END IN
•
HYDROSTATIC TEST PRESSURE: 320.0 POUNDS PER SQUARE INCH LBS
•
OUTER COVERING ENVIRONMENTAL PROTECTION: FUEL RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT
•
INSIDE DIAMETER: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE SURFACE CONDITIONSMOOTH
BURST TEST PRESSURE800.0 POUNDS PER SQUARE INCH LBS
MEASURING METHOD AND LENGTH120.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
END CONNECTION DESIGNSTRAIGHT FIRST END
NOMINAL THREAD SIZE3.000 INCHES FIRST END IN
HYDROSTATIC TEST PRESSURE320.0 POUNDS PER SQUARE INCH LBS
OUTER COVERING ENVIRONMENTAL PROTECTIONFUEL RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT
INSIDE DIAMETER3.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
MIL-DTL-26521Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-26521Interchangeable
interchangeable cross-reference
interchangeable
M26521F6.0T3000Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-27508Interchangeable
interchangeable cross-reference
interchangeable
9058AInterchangeable
interchangeable cross-reference
interchangeable
M26521-4-420Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M26521-3-120?
M26521-3-120 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace M26521-3-120?
There are 23 known substitutes for M26521-3-120: MIL-DTL-26521, MIL-H-26521, M26521F6.0T3000 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M26521-3-120?
M26521-3-120 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-720-3847. 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