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Technical Data Sheet
PartsTable / COMPONENT / 771018
771018 ✓ Verified by PartsTable
Legrand · 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 Legrand industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.250 INCHES NOMINAL IN, temp_rating: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, special_features: WITH PROTECTIVE INNER CASE, housing_bore_diameter: 1.502 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-409-3254, 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
771018
NSN: 5330-00-409-3254
FSC: 5330
CAGE: 20361 — ELWELL-PARKER ELECTRIC CO (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.250 INCHES NOMINAL IN
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
special_featuresWITH PROTECTIVE INNER CASE
housing_bore_diameter1.502 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-409-3254
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 771018 MFR: Legrand ⚠ 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
ACCOMMODATED SHAFT DIAMETER: 1.625 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
MATERIAL: STEEL CASE
•
HOUSING BORE DIAMETER: 1.502 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT DIAMETER1.625 INCHES NOMINAL IN
CASE STYLESQUARE
SEAL WIDTH0.250 INCHES NOMINAL IN
SPECIAL FEATURESWITH PROTECTIVE INNER CASE
SEALING ELEMENT STYLEANGULAR
MATERIALSTEEL CASE
HOUSING BORE DIAMETER1.502 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
16281Interchangeable
interchangeable cross-reference
interchangeable
666230-300Interchangeable
interchangeable cross-reference
interchangeable
7030120Interchangeable
interchangeable cross-reference
interchangeable
717-004667Interchangeable
interchangeable cross-reference
interchangeable
58-10167Interchangeable
interchangeable cross-reference
interchangeable
LN16281Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 771018?
771018 is a SEAL,PLAIN ENCASED manufactured by Legrand.
What parts can replace 771018?
There are 21 known substitutes for 771018: 16281, 666230-300, 7030120 and 18 more. Substitute compatibility should be verified for your specific system.
Is 771018 still available?
771018 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