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Technical Data Sheet
PartsTable / COMPONENT / 501A4-4
501A4-4 ✓ 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

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, hole_diameter: 0.037 INCHES NOMINAL IN, thread_length: 0.208 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-040-1828, 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
501A4-4
NSN: 4720-00-040-1828
FSC: 4720
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.072 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.166 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
hole_diameter0.037 INCHES NOMINAL IN
hole_quantity1
thread_length0.208 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
screw_materialSTEEL OR STEEL COMP 1010
fastener_length0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.112 INCHES IN
NSN4720-00-040-1828
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 501A4-4 · 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
THREAD DIRECTION: RIGHT-HAND SECOND END
•
INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
CONNECTION STYLE: SWIVEL NUT, INVERTED FLARE FIRST END
•
MINIMUM INSIDE BENDING RADIUS: 3.375 INCHES IN
•
HYDROSTATIC TEST PRESSURE: 5000.0 POUNDS PER SQUARE INCH LBS
•
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD DIRECTIONRIGHT-HAND SECOND END
INSIDE DIAMETER0.188 INCHES NOMINAL IN
CONNECTION STYLESWIVEL NUT, INVERTED FLARE FIRST END
CONNECTION STYLEPLAIN SECOND END
MINIMUM INSIDE BENDING RADIUS3.375 INCHES IN
HYDROSTATIC TEST PRESSURE5000.0 POUNDS PER SQUARE INCH LBS
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
VACUUM IN TORR50.8
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
501A4-4Interchangeable
interchangeable cross-reference
interchangeable
AN501A4-4Interchangeable
interchangeable cross-reference
interchangeable
50-144Interchangeable
interchangeable cross-reference
interchangeable
50144-1Interchangeable
interchangeable cross-reference
interchangeable
50144-2Interchangeable
interchangeable cross-reference
interchangeable
SCB69383Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501A4-4?
501A4-4 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 501A4-4?
There are 17 known substitutes for 501A4-4: 501A4-4, AN501A4-4, 50-144 and 14 more. Substitute compatibility should be verified for your specific system.
Is 501A4-4 still available?
501A4-4 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