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Technical Data Sheet
PartsTable / O-RING / 3-902 V747-75
3-902 V747-75 ✓ 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 color: BROWN, material: RUBBER FLUOROCARBON CLASS FPM OVERALL, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL, operating_medium: HYDRAULIC FLUID, peripheral_diameter: 0.356 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-165-1971, 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
3-902 V747-75
NSN: 5331-00-165-1971
FSC: 5331 — O-RING
CAGE: C0308 — PARKER HANNIFIN GMBH O-RING DIVISION (DEU)
SPECIFICATIONS
colorBROWN
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
operating_mediumHYDRAULIC FLUID
peripheral_diameter0.356 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
center_hole_diameter0.232 INCHES MINIMUM AND 0.246 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
functional_descriptionU/O NSN 1440-01-139-5873,1440-00-966-4581,4730-01-115-0123,4730-01-223-9536,4820-00-722-6523,4820-00-967-0228 AND 6685-00-734-6047
type/model_designationLAU-7/A-4
end_item_identification1440-01-098-0513
NSN5331-00-165-1971
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-902 V747-75 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
•
CROSS-SECTIONAL HEIGHT: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
•
OUTSIDE DIAMETER: 0.356 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE125 MAXIMUM
MATERIALRUBBER FLUOROCARBON CLASS FPM
OUTSIDE DIAMETER0.356 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
AS568-902Interchangeable
interchangeable cross-reference
interchangeable
TR-RG30Interchangeable
interchangeable cross-reference
interchangeable
AS568-902AMS3304Interchangeable
interchangeable cross-reference
interchangeable
877-50Interchangeable
interchangeable cross-reference
interchangeable
MS3393-2Interchangeable
interchangeable cross-reference
interchangeable
6843332-02Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-902 V747-75?
3-902 V747-75 is a O-RING.
What parts can replace 3-902 V747-75?
There are 27 known substitutes for 3-902 V747-75: AS568-902, TR-RG30, AS568-902AMS3304 and 24 more. Substitute compatibility should be verified for your specific system.
Is 3-902 V747-75 still available?
3-902 V747-75 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