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Technical Data Sheet
PartsTable / O-RING / 3-4E515-8
3-4E515-8 ✓ 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 POLYISOPRENE NATURAL CLASS NR OR RUBBER BUTADIENE-STYRENE CLASS SBR OR RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR, outside_diameter: 0.495 INCHES NOMINAL IN, center_hole_diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, cross-sectional_height: 0.069 INCHES MINIMUM AND 0.075 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 5331-00-993-4671, 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
3-4E515-8
NSN: 5331-00-993-4671
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER BUTADIENE-STYRENE CLASS SBR OR RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
outside_diameter0.495 INCHES NOMINAL IN
center_hole_diameter0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
cross-sectional_height0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
NSN5331-00-993-4671
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-4E515-8 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 POLYISOPRENE NATURAL CLASS NR OR RUBBER BUTADIENE-STYRENE CLASS SBR OR RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
•
OUTSIDE DIAMETER: 0.495 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER BUTADIENE-STYRENE CLASS SBR OR RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR
OUTSIDE DIAMETER0.495 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
ABS3303Interchangeable
interchangeable cross-reference
interchangeable
205-160-904Interchangeable
interchangeable cross-reference
interchangeable
M83248/2-904Interchangeable
interchangeable cross-reference
interchangeable
M83248/-904Interchangeable
interchangeable cross-reference
interchangeable
431385 ITEM 41Interchangeable
interchangeable cross-reference
interchangeable
X25C85Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-4E515-8?
3-4E515-8 is a O-RING.
What parts can replace 3-4E515-8?
There are 21 known substitutes for 3-4E515-8: ABS3303, 205-160-904, M83248/2-904 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-4E515-8?
3-4E515-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-993-4671. 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