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Technical Data Sheet
PartsTable / COMPONENT / 540N-4
540N-4 ✓ 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

HOSE ASSEMBLY,NONMETALLIC,FIRE F. Key specifications include material: PLASTIC TUBE, temp_rating: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF, exterior_color: BLACK, inside_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.513 INCHES MAXIMUM IN, operating_pressure: 2750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE 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 4720-00-405-4123, 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
540N-4
NSN: 4720-00-405-4123
FSC: 4720
CAGE: 61424 — PARKER-HANNIFIN CORP DIV PARFLEX DIVISION (USA)
SPECIFICATIONS
materialPLASTIC TUBE
temp_rating-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
exterior_colorBLACK
inside_diameter0.250 INCHES NOMINAL IN
outside_diameter0.513 INCHES MAXIMUM IN
operating_pressure2750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure11000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
hydrostatic_test_pressure5500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
cross-sectional_shape_styleROUND
specification/standard_data81343-J517,100R7 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
minimum_inside_bending_radius1.500 INCHES IN
NSN4720-00-405-4123
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 540N-4 · 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
•
BURST TEST PRESSURE: 11000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
TEMP RATING: -40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
OUTSIDE DIAMETER: 0.513 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC TUBE
•
INSIDE SURFACE CONDITION: SMOOTH
•
OUTER COVERING ENVIRONMENTAL PROTECTION: HYDRAULIC SOLUTION RESISTANT AND WEATHERPROOF
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED FIBER AND OUTER LAYER MOLDED POLYURETHANE
•
MINIMUM INSIDE BENDING RADIUS: 1.500 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
BURST TEST PRESSURE11000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
TEMP RATING-40.0 FAHRENHEIT AND 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
OUTSIDE DIAMETER0.513 INCHES MAXIMUM IN
MATERIALPLASTIC TUBE
INSIDE SURFACE CONDITIONSMOOTH
OUTER COVERING ENVIRONMENTAL PROTECTIONHYDRAULIC SOLUTION RESISTANT AND WEATHERPROOF
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED FIBER AND OUTER LAYER MOLDED POLYURETHANE
MINIMUM INSIDE BENDING RADIUS1.500 INCHES IN
HYDROSTATIC TEST PRESSURE5500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
INSIDE DIAMETER0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
37002-55Interchangeable
interchangeable cross-reference
interchangeable
37013-316Interchangeable
interchangeable cross-reference
interchangeable
371233Interchangeable
interchangeable cross-reference
interchangeable
5104Interchangeable
interchangeable cross-reference
interchangeable
DA5413Interchangeable
interchangeable cross-reference
interchangeable
SMB184995Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540N-4?
540N-4 is a HOSE ASSEMBLY,NONMETALLIC,FIRE F.
What parts can replace 540N-4?
There are 20 known substitutes for 540N-4: 37002-55, 37013-316, 371233 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 540N-4?
540N-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-405-4123. 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