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Technical Data Sheet
PartsTable / O-RING / 437575C3
437575C3 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The HOSE,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, bend_radius: 1.250 INCHES NOMINAL IN, wall_thickness: 0.175 INCHES NOMINAL IN, working_length: 6.750 INCHES NOMINAL IN, inside_diameter: 0.625 INCHES NOMINAL IN, first_arm_length: 1.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-720-0490, 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
437575C3
NSN: 5331-00-720-0490
FSC: 5331 — O-RING
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
bend_radius1.250 INCHES NOMINAL IN
wall_thickness0.175 INCHES NOMINAL IN
working_length6.750 INCHES NOMINAL IN
inside_diameter0.625 INCHES NOMINAL IN
first_arm_length1.125 INCHES NOMINAL IN
style_designatorSINGLE BEND
second_arm_length5.625 INCHES NOMINAL IN
NSN5331-00-720-0490
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 437575C3 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.094 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.094 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
A5105Interchangeable
interchangeable cross-reference
interchangeable
7377123Interchangeable
interchangeable cross-reference
interchangeable
135DS1Interchangeable
interchangeable cross-reference
interchangeable
11M802Interchangeable
interchangeable cross-reference
interchangeable
ASO-326-1Interchangeable
interchangeable cross-reference
interchangeable
32119Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 437575C3?
437575C3 is a HOSE,PREFORMED.
What parts can replace 437575C3?
There are 18 known substitutes for 437575C3: A5105, 7377123, 135DS1 and 15 more. Substitute compatibility should be verified for your specific system.
Is 437575C3 still available?
437575C3 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026