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Technical Data Sheet
PartsTable / COMPONENT / 63X81
63X81 ✓ 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 CORROSION RESISTING CASE, case_style: SQUARE, seal_width: 0.312 INCHES NOMINAL IN, outside_diameter: 1.379 INCHES NOMINAL IN, surface_treatment: PASSIVATE CASE, housing_bore_diameter: 1.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-141-4920, 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
63X81
NSN: 5330-00-141-4920
FSC: 5330
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING CASE
case_styleSQUARE
seal_width0.312 INCHES NOMINAL IN
outside_diameter1.379 INCHES NOMINAL IN
surface_treatmentPASSIVATE CASE
housing_bore_diameter1.375 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.594 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-141-4920
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63X81 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
•
ACCOMMODATED SHAFT DIAMETER: 0.594 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
SURFACE TREATMENT: PASSIVATE CASE
•
HOUSING BORE DIAMETER: 1.375 INCHES NOMINAL IN
•
SEAL WIDTH: 0.312 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.379 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
MATERIAL: STEEL CORROSION RESISTING CASE
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER0.594 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
SURFACE TREATMENTPASSIVATE CASE
HOUSING BORE DIAMETER1.375 INCHES NOMINAL IN
SEAL WIDTH0.312 INCHES NOMINAL IN
OUTSIDE DIAMETER1.379 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALSTEEL CORROSION RESISTING CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
SP267Interchangeable
interchangeable cross-reference
interchangeable
D600G217Interchangeable
interchangeable cross-reference
interchangeable
5990E1265Interchangeable
interchangeable cross-reference
interchangeable
R1663Interchangeable
interchangeable cross-reference
interchangeable
5966Interchangeable
interchangeable cross-reference
interchangeable
W-900-15-D-I-1/4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 63X81?
63X81 is a SEAL,PLAIN ENCASED.
What parts can replace 63X81?
There are 17 known substitutes for 63X81: SP267, D600G217, 5990E1265 and 14 more. Substitute compatibility should be verified for your specific system.
Is 63X81 still available?
63X81 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