PartsTable
Technical Data Sheet
PartsTable / O-RING / 3-903N756-75
3-903N756-75 ✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, cross-sectional_height: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-351-4199, 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
3-903N756-75
NSN: 5331-01-351-4199
FSC: 5331 — O-RING
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
cross-sectional_height0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
NSN5331-01-351-4199
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-903N756-75 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
•
CENTER HOLE DIAMETER: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
5331PL0813732Interchangeable
interchangeable cross-reference
interchangeable
M83461/2-902Interchangeable
interchangeable cross-reference
interchangeable
MIL-P-83461Interchangeable
interchangeable cross-reference
interchangeable
AS568-906 MIL-P-83461Interchangeable
interchangeable cross-reference
interchangeable
3-906N168-80Interchangeable
interchangeable cross-reference
interchangeable
PL-999D0838 PC NO 19Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-903N756-75?
3-903N756-75 is a O-RING.
What parts can replace 3-903N756-75?
There are 30 known substitutes for 3-903N756-75: 5331PL0813732, M83461/2-902, MIL-P-83461 and 27 more. Substitute compatibility should be verified for your specific system.
Is 3-903N756-75 still available?
3-903N756-75 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026