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Technical Data Sheet
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206-310 ✓ 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 SHAFT,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, hole_diameter: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, end_similarity: IDENTICAL, overall_length: 4.880 INCHES NOMINAL IN, surface_finish: 16.0 MICROINCHES, first_end_style: CIRCULAR GROOVED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-305-6389, 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
206-310
NSN: 5330-00-305-6389
FSC: 5330
CAGE: 31361 — WOODWARD, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 303
hole_diameter0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
step_quantity2
end_similarityIDENTICAL
overall_length4.880 INCHES NOMINAL IN
surface_finish16.0 MICROINCHES
first_end_styleCIRCULAR GROOVED
first_end_diameter0.3130 INCHES NOMINAL IN
largest_step_diameter0.375 INCHES NOMINAL IN
first_end_groove_width0.0300 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
first_end_groove_diameter0.2500 INCHES NOMINAL IN
NSN5330-00-305-6389
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 206-310 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
•
HOLE DIAMETER: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
206-310Interchangeable
interchangeable cross-reference
interchangeable
979-1B379Interchangeable
interchangeable cross-reference
interchangeable
R11683Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 206-310?
206-310 is a SHAFT,SHOULDERED.
What parts can replace 206-310?
There are 3 known substitutes for 206-310: 206-310, 979-1B379, R11683. Substitute compatibility should be verified for your specific system.
What is the NSN for 206-310?
206-310 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-305-6389. 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