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PartsTable / COMPONENT / STK40109
STK40109 ✓ 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 TUBING,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: PLASTIC CHLOROTRIFLUOROETHYLENE TUBE, flexibility: FLEXIBLE, exterior_color: BLACK, inside_diameter: 0.376 INCHES NOMINAL IN, outside_diameter: 0.500 INCHES NOMINAL IN, inside_surface_condition: SMOOTH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-290-9215, 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
STK40109
NSN: 4720-01-290-9215
FSC: 4720
CAGE: 74841 — FRUEHAUF CORP FRUEHAUF TRAILER OPNS (USA)
SPECIFICATIONS
materialPLASTIC CHLOROTRIFLUOROETHYLENE TUBE
flexibilityFLEXIBLE
exterior_colorBLACK
inside_diameter0.376 INCHES NOMINAL IN
outside_diameter0.500 INCHES NOMINAL IN
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
NSN4720-01-290-9215
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: STK40109 · 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
•
FLEXIBILITY: FLEXIBLE
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL: PLASTIC CHLOROTRIFLUOROETHYLENE TUBE
•
INSIDE DIAMETER: 0.376 INCHES NOMINAL IN
•
EXTERIOR COLOR: BLACK
•
INSIDE SURFACE CONDITION: SMOOTH
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
FLEXIBILITYFLEXIBLE
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
MATERIALPLASTIC CHLOROTRIFLUOROETHYLENE TUBE
INSIDE DIAMETER0.376 INCHES NOMINAL IN
EXTERIOR COLORBLACK
INSIDE SURFACE CONDITIONSMOOTH
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
115555Interchangeable
interchangeable cross-reference
interchangeable
EE42462Interchangeable
interchangeable cross-reference
interchangeable
020064Interchangeable
interchangeable cross-reference
interchangeable
06642-0000Interchangeable
interchangeable cross-reference
interchangeable
4221-8Interchangeable
interchangeable cross-reference
interchangeable
CPR104420Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STK40109?
STK40109 is a TUBING,NONMETALLIC.
What parts can replace STK40109?
There are 25 known substitutes for STK40109: 115555, EE42462, 020064 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for STK40109?
STK40109 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-290-9215. 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