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Technical Data Sheet
10543S ✓ 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: LEATHER SEALING ELEMENT A, case_style: SQUARE, seal_width: 0.594 INCHES NOMINAL IN, temp_rating: -80.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF, housing_bore_diameter: 2.718 INCHES MINIMUM AND 2.722 INCHES MAXIMUM IN, sealing_element_style: VERTICAL-ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-587-5291, 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
10543S
NSN: 5330-00-587-5291
FSC: 5330
CAGE: 01212 — FEDERAL-MOGUL CORP GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT A
case_styleSQUARE
seal_width0.594 INCHES NOMINAL IN
temp_rating-80.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
housing_bore_diameter2.718 INCHES MINIMUM AND 2.722 INCHES MAXIMUM IN
sealing_element_styleVERTICAL-ANGULAR
accommodated_shaft_diameter2.000 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3600 FEET PER MINUTE FT
NSN5330-00-587-5291
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10543S 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
HOUSING BORE DIAMETER: 2.718 INCHES MINIMUM AND 2.722 INCHES MAXIMUM IN
MATERIAL: LEATHER SEALING ELEMENT A
SEAL WIDTH: 0.594 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER: 2.000 INCHES NOMINAL IN
CASE STYLE: SQUARE
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
TEMP RATING: -80.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER2.718 INCHES MINIMUM AND 2.722 INCHES MAXIMUM IN
MATERIALLEATHER SEALING ELEMENT A
SEAL WIDTH0.594 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER2.000 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALSTEEL CASE
SEALING ELEMENT STYLEVERTICAL-ANGULAR
TEMP RATING-80.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
MATERIALLEATHER SEALING ELEMENT B
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3600 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
CG171AP10FT4Interchangeable
interchangeable cross-reference
interchangeable
CG171AP10-4Interchangeable
interchangeable cross-reference
interchangeable
X1553Interchangeable
interchangeable cross-reference
interchangeable
5511-0562Interchangeable
interchangeable cross-reference
interchangeable
4536-9/16Interchangeable
interchangeable cross-reference
interchangeable
4005-0562Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10543S?
10543S is a SEAL,PLAIN ENCASED.
What parts can replace 10543S?
There are 9 known substitutes for 10543S: CG171AP10FT4, CG171AP10-4, X1553 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10543S?
10543S is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-587-5291. This indicates validated use in U.S. government and defense supply chains.
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