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Technical Data Sheet
PartsTable / COMPONENT / 284-0540
284-0540 ✓ 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: 2.000 INCHES NOMINAL IN, connection_style: PLAIN FIRST END, outside_diameter: 2.562 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTIAL, thread_direction: RIGHT-HAND FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-803-9726, 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
284-0540
NSN: 4720-00-803-9726
FSC: 4720
CAGE: 93568 — HARSCO CORP BMY-COMBAT SYSTEMS DIV (USA)
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST END
inside_diameter2.000 INCHES NOMINAL IN
connection_stylePLAIN FIRST END
outside_diameter2.562 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL
thread_directionRIGHT-HAND FIRST END
operating_pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
nominal_thread_size2.000 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
end_item_identificationAIRCRAFT, PHANTOM F-4
inside_surface_conditionSMOOTH
media_for_which_designedFUEL/OIL, HYDROCARBON AND WATER, FRESH SINGLE RESPONSE
NSN4720-00-803-9726
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 284-0540 · 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
•
OUTSIDE DIAMETER: 2.562 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 2.000 INCHES FIRST END IN
•
CONNECTION STYLE: PLAIN FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER WOVEN FABRIC AND OUTER LAYER MOLDED RUBBER, CHLOROPRENE
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.562 INCHES NOMINAL IN
INSIDE DIAMETER2.000 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE2.000 INCHES FIRST END IN
CONNECTION STYLEPLAIN FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
LAYER COMPOSITION AND LOCATION1ST LAYER WOVEN FABRIC AND OUTER LAYER MOLDED RUBBER, CHLOROPRENE
END ITEM IDENTIFICATIONAIRCRAFT, PHANTOM F-4
END CONNECTION DESIGNSTRAIGHT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
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 284-0540?
284-0540 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 284-0540?
There are 25 known substitutes for 284-0540: MIL-DTL-26521, MIL-H-26521, M26521F6.0T3000 and 22 more. Substitute compatibility should be verified for your specific system.
Is 284-0540 still available?
284-0540 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