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PartsTable / COMPONENT / A1805E343
A1805E343 ✓ 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: SQUARE, seal_width: 0.562 INCHES NOMINAL IN, housing_bore_diameter: 5.751 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 4.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-837-9550, 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
A1805E343
NSN: 5330-00-837-9550
FSC: 5330
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.562 INCHES NOMINAL IN
housing_bore_diameter5.751 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter4.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-837-9550
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A1805E343 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: STEEL CASE
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 4.625 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 5.751 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEAL WIDTH: 0.562 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CASE
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER4.625 INCHES NOMINAL IN
HOUSING BORE DIAMETER5.751 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.562 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
575420M1Interchangeable
interchangeable cross-reference
interchangeable
46211CRInterchangeable
interchangeable cross-reference
interchangeable
135999Interchangeable
interchangeable cross-reference
interchangeable
9893Interchangeable
interchangeable cross-reference
interchangeable
MC9893Interchangeable
interchangeable cross-reference
interchangeable
ROTATOR CUFF REPAIR SYSTEMInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1805E343?
A1805E343 is a SEAL,PLAIN ENCASED.
What parts can replace A1805E343?
There are 16 known substitutes for A1805E343: 575420M1, 46211CR, 135999 and 13 more. Substitute compatibility should be verified for your specific system.
Is A1805E343 still available?
A1805E343 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