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A256515-4-4B31 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

A256515-4-4B31: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP M OVERALL, hole_diameter: 1.877 INCHES MINIMUM AND 1.882 INCHES MAXIMUM IN, outside_diameter: 2.750 INCHES NOMINAL IN, special_features: 0.062 IN. X 45 DEG CHAMFER BOTH ENDS OF I.D.

IN, style_designator: CONVEX, material_thickness: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 4720-01-010-3729, 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
A256515-4-4B31
NSN: 4720-01-010-3729
FSC: 4720 — Hose and Flexible Tubing
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP M OVERALL
hole_diameter1.877 INCHES MINIMUM AND 1.882 INCHES MAXIMUM IN
outside_diameter2.750 INCHES NOMINAL IN
special_features0.062 IN. X 45 DEG CHAMFER BOTH ENDS OF I.D. IN
style_designatorCONVEX
material_thickness0.438 INCHES NOMINAL IN
material_document_and_classificationMIL-S-20166 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4720-01-010-3729
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: A256515-4-4B31 · 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
SUBSTITUTES & CROSS-REFERENCES 1
4144-31Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A256515-4-4B31?
A256515-4-4B31 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace A256515-4-4B31?
There is 1 known substitute for A256515-4-4B31: 4144-31. Substitute compatibility should be verified for your specific system.
What is the NSN for A256515-4-4B31?
A256515-4-4B31 is cataloged in the U.S. Government catalog under NSN 4720-01-010-3729. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.