PartsTable
Technical Data Sheet
PartsTable / COMPONENT / DA6685
DA6685 ✓ 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: CORK AND RESIN NATURAL OVERALL, hole_diameter: 0.210 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 4.000 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 3.000 INCHES NOMINAL IN, bolt_circle_diameter: 3.594 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 5330-00-641-5469, 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
DA6685
NSN: 5330-00-641-5469
FSC: 5330
CAGE: 81601 — NORFOLK NAVAL SHIPYARD (USA)
SPECIFICATIONS
materialCORK AND RESIN NATURAL OVERALL
hole_diameter0.210 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter4.000 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter3.000 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter3.594 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-C-16090,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-641-5469
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DA6685 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 HOLE QUANTITY: 6
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: CORK AND RESIN NATURAL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-16090,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BOLT CIRCLE DIAMETER: 3.594 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.210 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE QUANTITY6
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALCORK AND RESIN NATURAL OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-16090,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BOLT CIRCLE DIAMETER3.594 INCHES NOMINAL IN
OUTSIDE DIAMETER4.000 INCHES NOMINAL IN
HOLE DIAMETER0.210 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
APERTURE DIAMETER3.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
9191Interchangeable
interchangeable cross-reference
interchangeable
S2603-860341Interchangeable
interchangeable cross-reference
interchangeable
8135-00-178-9191Interchangeable
interchangeable cross-reference
interchangeable
UU-T-81Interchangeable
interchangeable cross-reference
interchangeable
K42913Interchangeable
interchangeable cross-reference
interchangeable
TYPE3GRADEBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy DA6685?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is DA6685?
DA6685 is a GASKET.
What parts can replace DA6685?
There are 12 known substitutes for DA6685: 9191, S2603-860341, 8135-00-178-9191 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DA6685?
DA6685 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-641-5469. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — DA6685

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026