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PartsTable / COMPONENT / D31138
D31138 ✓ 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 inside_surface_condition: SMOOTH, cross-sectional_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-459-8349, 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
D31138
NSN: 4720-00-459-8349
FSC: 4720
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
NSN4720-00-459-8349
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: D31138 · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE SURFACE CONDITION: SMOOTH
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE SURFACE CONDITIONSMOOTH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
DH37D-6Interchangeable
interchangeable cross-reference
interchangeable
31139Interchangeable
interchangeable cross-reference
interchangeable
31138Interchangeable
interchangeable cross-reference
interchangeable
5303-812Interchangeable
interchangeable cross-reference
interchangeable
B26-4Interchangeable
interchangeable cross-reference
interchangeable
55525Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D31138?
D31138 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace D31138?
There are 10 known substitutes for D31138: DH37D-6, 31139, 31138 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D31138?
D31138 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-459-8349. 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