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Technical Data Sheet
PartsTable / COMPONENT / M26521F4.0T5000
M26521F4.0T5000 ✓ 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 M26521F4.0T5000 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-917-8373, 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
M26521F4.0T5000
NSN: 4720-00-917-8373
FSC: 4720
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM26521F4.0T5000
NSN4720-00-917-8373
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: M26521F4.0T5000 · 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 DIAMETER: 3.938 INCHES MINIMUM AND 4.062 INCHES MAXIMUM IN
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT FIRST END
•
MEASURING METHOD AND LENGTH: 600.000 INCHES NOMINAL OVERALL IN
•
HYDROSTATIC TEST PRESSURE: 280.0 POUNDS PER SQUARE INCH LBS
•
OUTER COVERING ENVIRONMENTAL PROTECTION: ABRASION RESISTANT AND FUEL RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT AND WEATHERPROOF
•
END FITTING COMPONENT AND MATERIAL: COMPLETE FITTING ALUMINUM ALLOY ALL ENDS
•
FITTING COMPONENT AND SURFACE TREATMENT: COMPLETE FITTING ANODIZE FIRST END
•
QUICK DISCONNECT NOMINAL SIZE: 4.000 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER3.938 INCHES MINIMUM AND 4.062 INCHES MAXIMUM IN
CONNECTION TYPEINTERNAL QUICK DISCONNECT FIRST END
MEASURING METHOD AND LENGTH600.000 INCHES NOMINAL OVERALL IN
HYDROSTATIC TEST PRESSURE280.0 POUNDS PER SQUARE INCH LBS
OUTER COVERING ENVIRONMENTAL PROTECTIONABRASION RESISTANT AND FUEL RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT AND WEATHERPROOF
END FITTING COMPONENT AND MATERIALCOMPLETE FITTING ALUMINUM ALLOY ALL ENDS
FITTING COMPONENT AND SURFACE TREATMENTCOMPLETE FITTING ANODIZE FIRST END
QUICK DISCONNECT NOMINAL SIZE4.000 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA81349-MIL-H-26521 GOVERNMENT SPECIFICATION
SPECIAL FEATURESINNER CONVEYING TUBE MATERIAL-RUBBER, SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
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
M26521A3.0R0120Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M26521F4.0T5000?
M26521F4.0T5000 is a M26521F4.0T5000.
What parts can replace M26521F4.0T5000?
There are 24 known substitutes for M26521F4.0T5000: MIL-DTL-26521, MIL-H-26521, M26521F6.0T3000 and 21 more. Substitute compatibility should be verified for your specific system.
Is M26521F4.0T5000 still available?
M26521F4.0T5000 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026