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Technical Data Sheet
PartsTable / O-RING / S6405-74466-56
S6405-74466-56 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q, center_hole_diameter: 4.335 INCHES MINIMUM AND 4.365 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM 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 5331-00-063-3628, 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
S6405-74466-56
NSN: 5331-00-063-3628
FSC: 5331 — O-RING
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q
center_hole_diameter4.335 INCHES MINIMUM AND 4.365 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-00-063-3628
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S6405-74466-56 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
•
MATERIAL: RUBBER SILICONE CLASS Q
•
CENTER HOLE DIAMETER: 4.335 INCHES MINIMUM AND 4.365 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SILICONE CLASS Q
CENTER HOLE DIAMETER4.335 INCHES MINIMUM AND 4.365 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
P2-73Interchangeable
interchangeable cross-reference
interchangeable
P-8-10196Interchangeable
interchangeable cross-reference
interchangeable
7052Interchangeable
interchangeable cross-reference
interchangeable
2125Interchangeable
interchangeable cross-reference
interchangeable
8096PInterchangeable
interchangeable cross-reference
interchangeable
P739AXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S6405-74466-56?
S6405-74466-56 is a O-RING.
What parts can replace S6405-74466-56?
There are 12 known substitutes for S6405-74466-56: P2-73, P-8-10196, 7052 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S6405-74466-56?
S6405-74466-56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-063-3628. 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