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Technical Data Sheet
PartsTable / O-RING / PL44616-121H FIND NO. 78
PL44616-121H FIND NO. 78 ✓ 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 PL44616-121H FIND NO. 78 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-046-0629, 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
PL44616-121H FIND NO. 78
NSN: 5331-01-046-0629
FSC: 5331 — O-RING
CAGE: 63600 — CURTISS-WRIGHT FLOW CONTROL CORPORATION DBA CURTISS-WRIGHT FLOW CONTROL CO DIV CURTISS-WRIGHT / NU-TORQUE (USA)
SPECIFICATIONS
Part NumberPL44616-121H FIND NO. 78
NSN5331-01-046-0629
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PL44616-121H FIND NO. 78 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: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
•
OUTSIDE DIAMETER: 0.618 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.484 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
MATERIALRUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
OUTSIDE DIAMETER0.618 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.484 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
011-1487Interchangeable
interchangeable cross-reference
interchangeable
S8057K6Interchangeable
interchangeable cross-reference
interchangeable
7.65X1.78-23B7Interchangeable
interchangeable cross-reference
interchangeable
401417Interchangeable
interchangeable cross-reference
interchangeable
7538016P001Interchangeable
interchangeable cross-reference
interchangeable
KBPC102AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PL44616-121H FIND NO. 78?
PL44616-121H FIND NO. 78 is a PL44616-121H FIND NO. 78.
What parts can replace PL44616-121H FIND NO. 78?
There are 18 known substitutes for PL44616-121H FIND NO. 78: 011-1487, S8057K6, 7.65X1.78-23B7 and 15 more. Substitute compatibility should be verified for your specific system.
Is PL44616-121H FIND NO. 78 still available?
PL44616-121H FIND NO. 78 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