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Technical Data Sheet
PartsTable / COMPONENT / 68561
68561 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: RUBBER OVERALL, body_style: STRAIGHT SHAPE, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 1.230 INCHES NOMINAL IN, terminal_type: THREADED STUD SINGLE MATING END FIRST CONTACT GROUPING, overall_height: 1.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-290-8871, 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
68561
NSN: 5330-00-290-8871
FSC: 5330
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialRUBBER OVERALL
body_styleSTRAIGHT SHAPE
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.230 INCHES NOMINAL IN
terminal_typeTHREADED STUD SINGLE MATING END FIRST CONTACT GROUPING
overall_height1.125 INCHES NOMINAL IN
overall_length1.625 INCHES NOMINAL IN
insert_materialPLASTIC EPOXY SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END ALL CONTACT GROUPINGS
special_featuresSIDES ROUNDED AT A RADIUS OF 1.660 INCHES FROM GASKET CENTER IN
precious_materialGOLD
terminal_locationBACK SINGLE MATING END ALL CONTACT GROUPINGS
NSN5330-00-290-8871
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 68561 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
FSC APPLICATION DATA: ENGINE,AIRCRAFT,RECIPROCATING
•
MATERIAL: RUBBER OVERALL
•
BOLT CIRCLE DIAMETER: 3.625 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.340 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.014 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
FSC APPLICATION DATAENGINE,AIRCRAFT,RECIPROCATING
MATERIALRUBBER OVERALL
BOLT CIRCLE DIAMETER3.625 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.340 INCHES NOMINAL IN
SPECIAL FEATURESSIDES ROUNDED AT A RADIUS OF 1.660 INCHES FROM GASKET CENTER IN
HOLE DIAMETER0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.014 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
305-10045Interchangeable
interchangeable cross-reference
interchangeable
1226279REVD2Interchangeable
interchangeable cross-reference
interchangeable
67-221Interchangeable
interchangeable cross-reference
interchangeable
68561Interchangeable
interchangeable cross-reference
interchangeable
2810H34-001Interchangeable
Same NIIN cross-reference
interchangeable
A247374Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68561?
68561 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 68561?
There are 6 known substitutes for 68561: 305-10045, 1226279REVD2, 67-221 and 3 more. Substitute compatibility should be verified for your specific system.
Is 68561 still available?
68561 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