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Technical Data Sheet
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1243658 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SHOULDERED, seal_width: 0.547 INCHES NOMINAL IN, outside_diameter: 6.125 INCHES NOMINAL IN, special_features: INCLUDES THE FOLLWOING CHICAO RAWHIDE PARTS,SEAL 500896 1 EA,GASKETS 450023 2EA,SLEEVE ASSY 500488 1EA, attachment_method: ROUND HOLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-393-6269, 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
1243658
NSN: 5330-00-393-6269
FSC: 5330
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSHOULDERED
seal_width0.547 INCHES NOMINAL IN
outside_diameter6.125 INCHES NOMINAL IN
special_featuresINCLUDES THE FOLLWOING CHICAO RAWHIDE PARTS,SEAL 500896 1 EA,GASKETS 450023 2EA,SLEEVE ASSY 500488 1EA
attachment_methodROUND HOLE
housing_bore_diameter3.250 INCHES NOMINAL IN
sealing_element_styleANGULAR
attachment_hole_diameter0.563 INCHES NOMINAL IN
accommodated_shaft_diameter2.500 INCHES NOMINAL IN
attachment_feature_quantity8
attachment_feature_circle_diameter5.312 INCHES NOMINAL SINGLE CIRCLE IN
NSN5330-00-393-6269
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1243658 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
•
OUTSIDE DIAMETER: 6.125 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
ATTACHMENT HOLE DIAMETER: 0.563 INCHES NOMINAL IN
•
CASE STYLE: SHOULDERED
•
SEAL WIDTH: 0.547 INCHES NOMINAL IN
•
ATTACHMENT METHOD: ROUND HOLE
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 5.312 INCHES NOMINAL SINGLE CIRCLE IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER6.125 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
ATTACHMENT HOLE DIAMETER0.563 INCHES NOMINAL IN
CASE STYLESHOULDERED
SEAL WIDTH0.547 INCHES NOMINAL IN
ATTACHMENT METHODROUND HOLE
ATTACHMENT FEATURE CIRCLE DIAMETER5.312 INCHES NOMINAL SINGLE CIRCLE IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
ATTACHMENT FEATURE QUANTITY8
MATERIALSTEEL CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
C12257Interchangeable
interchangeable cross-reference
interchangeable
110 1-1/16Interchangeable
interchangeable cross-reference
interchangeable
10068Interchangeable
interchangeable cross-reference
interchangeable
821150Interchangeable
interchangeable cross-reference
interchangeable
5214672Interchangeable
interchangeable cross-reference
interchangeable
5A7253Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1243658?
1243658 is a SEAL,PLAIN ENCASED.
What parts can replace 1243658?
There are 22 known substitutes for 1243658: C12257, 110 1-1/16, 10068 and 19 more. Substitute compatibility should be verified for your specific system.
Is 1243658 still available?
1243658 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026