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440676 ✓ 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 special_features: COMPOUND NO. S418-6 MATERIAL O/A, center_hole_diameter: 0.624 INCHES NOMINAL IN, cross-sectional_height: 0.071 INCHES NOMINAL IN, cross-sectional_shape_style: O-RING.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-072-5291, 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
440676
NSN: 5330-01-072-5291
FSC: 5330
CAGE: 80249 — BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
special_featuresCOMPOUND NO. S418-6 MATERIAL O/A
center_hole_diameter0.624 INCHES NOMINAL IN
cross-sectional_height0.071 INCHES NOMINAL IN
cross-sectional_shape_styleO-RING
NSN5330-01-072-5291
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 440676 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: 0.624 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.071 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.624 INCHES NOMINAL IN
SPECIAL FEATURESCOMPOUND NO. S418-6 MATERIAL O/A
CROSS-SECTIONAL HEIGHT0.071 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEO-RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
247-53610Interchangeable
interchangeable cross-reference
interchangeable
5653Interchangeable
interchangeable cross-reference
interchangeable
5653-27Interchangeable
interchangeable cross-reference
interchangeable
86559Interchangeable
interchangeable cross-reference
interchangeable
5791Interchangeable
interchangeable cross-reference
interchangeable
851364Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 440676?
440676 is a PACKING,PREFORMED.
What parts can replace 440676?
There are 15 known substitutes for 440676: 247-53610, 5653, 5653-27 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 440676?
440676 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-072-5291. 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