PartsTable
Technical Data Sheet
L3531B ✓ 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, case_style: SQUARE, seal_width: 0.500 INCHES NOMINAL IN, outside_diameter: 2.690 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 2.686 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-178-2284, 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
L3531B
NSN: 5330-00-178-2284
FSC: 5330
CAGE: 43952 — ENERGY SERVICES GROUP DIV OF COOPER INDUSTRIES INC (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width0.500 INCHES NOMINAL IN
outside_diameter2.690 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.686 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.750 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-178-2284
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: L3531B 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
CASE STYLE: SQUARE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
SEAL WIDTH: 0.500 INCHES NOMINAL IN
SURFACE TREATMENT: PLASTIC CASE
MATERIAL: STEEL CASE
OUTSIDE DIAMETER: 2.690 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER: 1.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLESQUARE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.500 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
OUTSIDE DIAMETER2.690 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.750 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER2.686 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
17484Interchangeable
interchangeable cross-reference
interchangeable
A42555Interchangeable
interchangeable cross-reference
interchangeable
56613Interchangeable
interchangeable cross-reference
interchangeable
S10BInterchangeable
interchangeable cross-reference
interchangeable
7S10FEDERALInterchangeable
interchangeable cross-reference
interchangeable
7010BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L3531B?
L3531B is a SEAL,PLAIN ENCASED.
What parts can replace L3531B?
There are 25 known substitutes for L3531B: 17484, A42555, 56613 and 22 more. Substitute compatibility should be verified for your specific system.
Is L3531B still available?
L3531B is currently cancelled.
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