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KM1578 ✓ 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, inside_diameter: 1.250 INCHES NOMINAL IN, style_designator: TWO BEND, features_provided: ENLARGED ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-332-6126, 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
KM1578
NSN: 4720-01-332-6126
FSC: 4720
CAGE: 57526 — FORD MOTOR COMPANY (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
inside_diameter1.250 INCHES NOMINAL IN
style_designatorTWO BEND
features_providedENLARGED ENDS
NSN4720-01-332-6126
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: KM1578 · 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
•
FEATURES PROVIDED: ENLARGED ENDS
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
STYLE DESIGNATOR: TWO BEND
•
INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDENLARGED ENDS
MATERIALRUBBER SYNTHETIC OVERALL
STYLE DESIGNATORTWO BEND
INSIDE DIAMETER1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
21436Interchangeable
interchangeable cross-reference
interchangeable
5110-00-224-8838Interchangeable
interchangeable cross-reference
interchangeable
37557Interchangeable
interchangeable cross-reference
interchangeable
21436CInterchangeable
interchangeable cross-reference
interchangeable
5028644Interchangeable
interchangeable cross-reference
interchangeable
110-21225 ITEM 10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KM1578?
KM1578 is a HOSE,PREFORMED.
What parts can replace KM1578?
There are 11 known substitutes for KM1578: 21436, 5110-00-224-8838, 37557 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KM1578?
KM1578 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-332-6126. 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