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Technical Data Sheet
PartsTable / O-RING / KC9613
KC9613 ✓ 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 SYNTHETIC, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 5.275 INCHES NOMINAL IN, center_hole_diameter: 4.692 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-183-0985, 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
KC9613
NSN: 5331-01-183-0985
FSC: 5331 — O-RING
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter5.275 INCHES NOMINAL IN
center_hole_diameter4.692 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
NSN5331-01-183-0985
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: KC9613 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 SYNTHETIC
•
OUTSIDE DIAMETER: 5.275 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 4.692 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
OUTSIDE DIAMETER5.275 INCHES NOMINAL IN
CENTER HOLE DIAMETER4.692 INCHES MINIMUM AND 4.758 INCHES MAXIMUM IN
ELONGATION PERCENTAGE125 MAXIMUM
CROSS-SECTIONAL HEIGHT0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
MILP5516CLASSBInterchangeable
interchangeable cross-reference
interchangeable
MIL-P-25732Interchangeable
interchangeable cross-reference
interchangeable
223227Interchangeable
interchangeable cross-reference
interchangeable
PD5330-221-7Interchangeable
interchangeable cross-reference
interchangeable
EE38PC37Interchangeable
interchangeable cross-reference
interchangeable
C498ITEM3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KC9613?
KC9613 is a O-RING.
What parts can replace KC9613?
There are 25 known substitutes for KC9613: MILP5516CLASSB, MIL-P-25732, 223227 and 22 more. Substitute compatibility should be verified for your specific system.
Is KC9613 still available?
KC9613 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