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Technical Data Sheet
PartsTable / O-RING / 2-247 N304-75
2-247 N304-75 ✓ 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 FLUOROCARBON CLASS FPM, temp_rating: -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 4.849 INCHES MINIMUM AND 4.925 INCHES MAXIMUM IN, center_hole_diameter: 4.579 INCHES MINIMUM AND 4.639 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-579-7923, 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
2-247 N304-75
NSN: 5331-00-579-7923
FSC: 5331 — O-RING
CAGE: C0308 — PARKER HANNIFIN GMBH O-RING DIVISION (DEU)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
temp_rating-15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter4.849 INCHES MINIMUM AND 4.925 INCHES MAXIMUM IN
center_hole_diameter4.579 INCHES MINIMUM AND 4.639 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-579-7923
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-247 N304-75 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 4.849 INCHES MINIMUM AND 4.925 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 4.594 INCHES MINIMUM AND 4.624 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER4.849 INCHES MINIMUM AND 4.925 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER4.594 INCHES MINIMUM AND 4.624 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
P6130AInterchangeable
interchangeable cross-reference
interchangeable
144488Interchangeable
interchangeable cross-reference
interchangeable
663Interchangeable
interchangeable cross-reference
interchangeable
13401Interchangeable
interchangeable cross-reference
interchangeable
11247Interchangeable
interchangeable cross-reference
interchangeable
B107.54Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2-247 N304-75?
2-247 N304-75 is a O-RING.
What parts can replace 2-247 N304-75?
There are 31 known substitutes for 2-247 N304-75: P6130A, 144488, 663 and 28 more. Substitute compatibility should be verified for your specific system.
Is 2-247 N304-75 still available?
2-247 N304-75 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