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PartsTable / COMPONENT / 20R4 CLASS D2
20R4 CLASS D2 ✓ 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,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, wall_thickness: 0.017 INCHES NOMINAL IN, inside_diameter: 2.500 INCHES NOMINAL IN, style_designator: TWO BEND, features_provided: ENLARGED ENDS, end_item_identification: NAVISTAR 466 ENGINE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-329-7347, 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
20R4 CLASS D2
NSN: 4720-01-329-7347
FSC: 4720
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
wall_thickness0.017 INCHES NOMINAL IN
inside_diameter2.500 INCHES NOMINAL IN
style_designatorTWO BEND
features_providedENLARGED ENDS
end_item_identificationNAVISTAR 466 ENGINE
NSN4720-01-329-7347
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 20R4 CLASS D2 · 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
•
INSIDE DIAMETER: 2.500 INCHES NOMINAL IN
•
FEATURES PROVIDED: ENLARGED ENDS
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
STYLE DESIGNATOR: TWO BEND
•
WALL THICKNESS: 0.017 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER2.500 INCHES NOMINAL IN
END ITEM IDENTIFICATIONNAVISTAR 466 ENGINE
FEATURES PROVIDEDENLARGED ENDS
MATERIALRUBBER SYNTHETIC OVERALL
STYLE DESIGNATORTWO BEND
WALL THICKNESS0.017 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
306918R1Interchangeable
interchangeable cross-reference
interchangeable
20R4Interchangeable
interchangeable cross-reference
interchangeable
60194Interchangeable
interchangeable cross-reference
interchangeable
20R2Interchangeable
interchangeable cross-reference
interchangeable
J20Interchangeable
interchangeable cross-reference
interchangeable
21042Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20R4 CLASS D2?
20R4 CLASS D2 is a HOSE,PREFORMED.
What parts can replace 20R4 CLASS D2?
There are 7 known substitutes for 20R4 CLASS D2: 306918R1, 20R4, 60194 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20R4 CLASS D2?
20R4 CLASS D2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-329-7347. 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