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Technical Data Sheet
PartsTable / COMPONENT / MIL-R-3065E
MIL-R-3065E ✓ 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: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR, construction: SOLID, overall_length: 106.000 INCHES NOMINAL IN, attachment_method: CEMENTED, fabrication_method: SOLID, center_hole_diameter: 2.602 INCHES MINIMUM AND 2.622 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 5330-00-165-1848, 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
MIL-R-3065E
NSN: 5330-00-165-1848
FSC: 5330
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
constructionSOLID
overall_length106.000 INCHES NOMINAL IN
attachment_methodCEMENTED
fabrication_methodSOLID
center_hole_diameter2.602 INCHES MINIMUM AND 2.622 INCHES MAXIMUM IN
cross-sectional_width0.656 INCHES NOMINAL IN
cross-sectional_height0.125 INCHES NOMINAL IN
cross_section_inside_diameter0.187 INCHES NOMINAL IN
NSN5330-00-165-1848
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-R-3065E 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
•
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.109 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
HARDNESS RATING: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BC515ABF1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
APERTURE DIAMETER0.109 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
HARDNESS RATING45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BC515ABF1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MIL-R-3065EInterchangeable
interchangeable cross-reference
interchangeable
367486PC5Interchangeable
interchangeable cross-reference
interchangeable
734913PC27Interchangeable
interchangeable cross-reference
interchangeable
734913-27Interchangeable
interchangeable cross-reference
interchangeable
D346-268Interchangeable
interchangeable cross-reference
interchangeable
82628ASPC82632AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-3065E?
MIL-R-3065E is a GASKET.
What parts can replace MIL-R-3065E?
There are 20 known substitutes for MIL-R-3065E: MIL-R-3065E, 367486PC5, 734913PC27 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-3065E?
MIL-R-3065E is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-165-1848. 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