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Technical Data Sheet
PartsTable / COMPONENT / 8Z6578-5
8Z6578-5 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, hardness_rating: 63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL, rim_surface_width: 0.188 INCHES NOMINAL IN, inner_groove_width: 0.125 INCHES NOMINAL IN, outer_groove_width: 0.062 INCHES NOMINAL IN, peripheral_diameter: 1.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-3627, 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
8Z6578-5
NSN: 5330-00-297-3627
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
hardness_rating63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
rim_surface_width0.188 INCHES NOMINAL IN
inner_groove_width0.125 INCHES NOMINAL IN
outer_groove_width0.062 INCHES NOMINAL IN
peripheral_diameter1.750 INCHES NOMINAL IN
center_hole_diameter1.375 INCHES NOMINAL IN
cross-sectional_height0.250 INCHES NOMINAL IN
cross-sectional_shape_styleSPECIAL
NSN5330-00-297-3627
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8Z6578-5 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
•
CENTER HOLE DIAMETER: 1.375 INCHES NOMINAL IN
•
INNER GROOVE WIDTH: 0.125 INCHES NOMINAL IN
•
RIM SURFACE WIDTH: 0.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
HARDNESS RATING: 63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
•
PERIPHERAL DIAMETER: 1.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
•
CROSS-SECTIONAL HEIGHT: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER1.375 INCHES NOMINAL IN
INNER GROOVE WIDTH0.125 INCHES NOMINAL IN
RIM SURFACE WIDTH0.188 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
HARDNESS RATING63.0 SHORE DUROMETER A MINIMUM AND 73.0 SHORE DUROMETER A MAXIMUM OVERALL
PERIPHERAL DIAMETER1.750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESPECIAL
CROSS-SECTIONAL HEIGHT0.250 INCHES NOMINAL IN
OUTER GROOVE WIDTH0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
SAE J512 4 010111BInterchangeable
interchangeable cross-reference
interchangeable
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
J512Interchangeable
interchangeable cross-reference
interchangeable
042310Interchangeable
interchangeable cross-reference
interchangeable
42310Interchangeable
interchangeable cross-reference
interchangeable
10ED3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8Z6578-5?
8Z6578-5 is a PACKING,PREFORMED.
What parts can replace 8Z6578-5?
There are 16 known substitutes for 8Z6578-5: SAE J512 4 010111B, SAE-J512, J512 and 13 more. Substitute compatibility should be verified for your specific system.
Is 8Z6578-5 still available?
8Z6578-5 is currently cancelled.
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Last verified: July 2026