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Technical Data Sheet
PartsTable / COMPONENT / 39757DC
39757DC ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include aperture_width: 3.750 INCHES NOMINAL IN, aperture_length: 8.250 INCHES NOMINAL IN, bearing_surface_width: 0.625 INCHES NOMINAL IN, outside_corner_radius: 1.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.125 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-360-3604, 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
39757DC
NSN: 5330-00-360-3604
FSC: 5330
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
aperture_width3.750 INCHES NOMINAL IN
aperture_length8.250 INCHES NOMINAL IN
bearing_surface_width0.625 INCHES NOMINAL IN
outside_corner_radius1.500 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-360-3604
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 39757DC 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
•
APERTURE WIDTH: 3.750 INCHES NOMINAL IN
•
BEARING SURFACE WIDTH: 0.625 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
APERTURE LENGTH: 8.250 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 1.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE WIDTH3.750 INCHES NOMINAL IN
BEARING SURFACE WIDTH0.625 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
APERTURE LENGTH8.250 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS1.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
580515Interchangeable
interchangeable cross-reference
interchangeable
NLS3904Interchangeable
interchangeable cross-reference
interchangeable
15-1006Interchangeable
interchangeable cross-reference
interchangeable
AN3053-32Interchangeable
interchangeable cross-reference
interchangeable
26-3-32Interchangeable
interchangeable cross-reference
interchangeable
2251103Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 39757DC?
39757DC is a GASKET.
What parts can replace 39757DC?
There are 13 known substitutes for 39757DC: 580515, NLS3904, 15-1006 and 10 more. Substitute compatibility should be verified for your specific system.
Is 39757DC still available?
39757DC 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