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PartsTable / COMPONENT / ER5541
ER5541 ✓ 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: RUBBER SYNTHETIC SEALING ELEMENT B, case_style: RECESSED, seal_width: 0.250 INCHES NOMINAL IN, outside_diameter: 1.756 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 1.752 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-080-0309, 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
ER5541
NSN: 5330-00-080-0309
FSC: 5330
CAGE: 79150 — DANA AUTOMOTIVE SYSTEMS GROUP, LLC DBA DANA SEALING PRODUCTS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT B
case_styleRECESSED
seal_width0.250 INCHES NOMINAL IN
outside_diameter1.756 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter1.752 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter1.000 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3600 FEET PER MINUTE FT
NSN5330-00-080-0309
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ER5541 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
•
SURFACE TREATMENT: PLASTIC CASE
•
HOUSING BORE DIAMETER: 1.752 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT A
•
CASE STYLE: RECESSED
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPLASTIC CASE
HOUSING BORE DIAMETER1.752 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
CASE STYLERECESSED
SEALING ELEMENT STYLEANGULAR-OPPOSED
MATERIALSTEEL CASE
SEAL WIDTH0.250 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3600 FEET PER MINUTE FT
OUTSIDE DIAMETER1.756 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
118-10Interchangeable
interchangeable cross-reference
interchangeable
MS35430-5Interchangeable
interchangeable cross-reference
interchangeable
999-8Interchangeable
interchangeable cross-reference
interchangeable
8115-00-559-9998Interchangeable
interchangeable cross-reference
interchangeable
PPP-B-640Interchangeable
interchangeable cross-reference
interchangeable
71115Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ER5541?
ER5541 is a SEAL,PLAIN ENCASED.
What parts can replace ER5541?
There are 18 known substitutes for ER5541: 118-10, MS35430-5, 999-8 and 15 more. Substitute compatibility should be verified for your specific system.
Is ER5541 still available?
ER5541 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