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Technical Data Sheet
PartsTable / COMPONENT / 520N-0106-2-4-3-21 3/8
520N-0106-2-4-3-21 3/8 ✓ 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 520N-0106-2-4-3-21 3/8 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-272-4388, 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
520N-0106-2-4-3-21 3/8
NSN: 4720-01-272-4388
FSC: 4720
CAGE: 61424 — PARKER-HANNIFIN CORP DIV PARFLEX DIVISION (USA)
SPECIFICATIONS
Part Number520N-0106-2-4-3-21 3/8
NSN4720-01-272-4388
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 520N-0106-2-4-3-21 3/8 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
MEASURING METHOD AND LENGTH: 21.875 INCHES NOMINAL OVERALL IN
•
INSIDE SURFACE CONDITION: SMOOTH
•
EXTERIOR COLOR: BLACK
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED FABRIC
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
MEASURING METHOD AND LENGTH21.875 INCHES NOMINAL OVERALL IN
INSIDE SURFACE CONDITIONSMOOTH
SPECIAL FEATURESU/O BREATHING APPARATUS
EXTERIOR COLORBLACK
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED FABRIC
CROSS-SECTIONAL SHAPE STYLEROUND
BURST TEST PRESSURE20000.0 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
3433Interchangeable
interchangeable cross-reference
interchangeable
679279PC13Interchangeable
interchangeable cross-reference
interchangeable
GLD3433Interchangeable
interchangeable cross-reference
interchangeable
03433Interchangeable
interchangeable cross-reference
interchangeable
369-001Interchangeable
interchangeable cross-reference
interchangeable
369-0001-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 520N-0106-2-4-3-21 3/8?
520N-0106-2-4-3-21 3/8 is a 520N-0106-2-4-3-21 3/8.
What parts can replace 520N-0106-2-4-3-21 3/8?
There are 8 known substitutes for 520N-0106-2-4-3-21 3/8: 3433, 679279PC13, GLD3433 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 520N-0106-2-4-3-21 3/8?
520N-0106-2-4-3-21 3/8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-272-4388. 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