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Technical Data Sheet
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MR838 ✓ 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,RADIATOR is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC COVER, bend_radius: 1.625 INCHES NOMINAL IN, outer_radius: 2.500 INCHES NOMINAL IN, wall_thickness: 0.190 INCHES NOMINAL IN, working_length: 18.125 INCHES NOMINAL IN, inside_diameter: 1.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-728-7515, 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
MR838
NSN: 4720-00-728-7515
FSC: 4720
CAGE: 72781 — PIRELLI POWER TRANSMISSION CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC COVER
bend_radius1.625 INCHES NOMINAL IN
outer_radius2.500 INCHES NOMINAL IN
wall_thickness0.190 INCHES NOMINAL IN
working_length18.125 INCHES NOMINAL IN
inside_diameter1.500 INCHES NOMINAL IN
first_arm_length1.625 INCHES NOMINAL IN
style_designatorTWO BEND MODIFIED "U"
second_arm_length5.500 INCHES NOMINAL IN
material_document_and_classificationSAE J20B 20R4, CLASS SC ASSN STD SINGLE MATERIAL RESPONSE COVER
NSN4720-00-728-7515
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: MR838 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
264014-13Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-1083Interchangeable
interchangeable cross-reference
interchangeable
25816010-13Interchangeable
interchangeable cross-reference
interchangeable
3882884Interchangeable
interchangeable cross-reference
interchangeable
20470Interchangeable
interchangeable cross-reference
interchangeable
3942515Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MR838?
MR838 is a HOSE,RADIATOR.
What parts can replace MR838?
There are 12 known substitutes for MR838: 264014-13, MIL-B-1083, 25816010-13 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MR838?
MR838 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-728-7515. 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