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Technical Data Sheet
RD30440-1 ✓ 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 material: COTTON OVERALL, hole_diameter: 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 5.125 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 3.688 INCHES NOMINAL IN, bolt_circle_diameter: 4.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-087-8929, 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
RD30440-1
NSN: 5330-00-087-8929
FSC: 5330
CAGE: 72447 — DANA COMMERCIAL VEHICLE MANUFACTURING, LLC DBA DANA COMMERCIAL VEHICLE PRODUCTS (USA)
SPECIFICATIONS
materialCOTTON OVERALL
hole_diameter0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter5.125 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter3.688 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter4.375 INCHES NOMINAL IN
cross-sectional_thickness0.016 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-087-8929
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RD30440-1 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
BOLT CIRCLE DIAMETER: 4.375 INCHES NOMINAL IN
HOLE DIAMETER: 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE DIAMETER: 5.125 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS: 0.016 INCHES NOMINAL IN
APERTURE DIAMETER: 3.688 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
MATERIAL: COTTON OVERALL
BOLT HOLE QUANTITY: 6
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE DIAMETER4.375 INCHES NOMINAL IN
HOLE DIAMETER0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE DIAMETER5.125 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.016 INCHES NOMINAL IN
APERTURE DIAMETER3.688 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALCOTTON OVERALL
BOLT HOLE QUANTITY6
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
3088-2Interchangeable
interchangeable cross-reference
interchangeable
402130Interchangeable
interchangeable cross-reference
interchangeable
1507377Interchangeable
interchangeable cross-reference
interchangeable
422372-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RD30440-1?
RD30440-1 is a GASKET.
What parts can replace RD30440-1?
There are 4 known substitutes for RD30440-1: 3088-2, 402130, 1507377 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RD30440-1?
RD30440-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-087-8929. This indicates validated use in U.S. government and defense supply chains.
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