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Technical Data Sheet
63X1603 ✓ 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, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, housing_bore_diameter: 3.147 INCHES NOMINAL IN, sealing_element_style: ANGULAR, maximum_pressure_rating: 7.0 POUNDS PER SQUARE INCH (PSI) LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-542-3470, 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
63X1603
NSN: 5330-00-542-3470
FSC: 5330
CAGE: 73680 — GARLOCK SEALING TECHNOLOGIES LLC DBA GARLOCK SEALING TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
housing_bore_diameter3.147 INCHES NOMINAL IN
sealing_element_styleANGULAR
maximum_pressure_rating7.0 POUNDS PER SQUARE INCH (PSI) LBS
accommodated_shaft_diameter2.344 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-542-3470
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63X1603 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
MATERIAL: STEEL CASE
SEALING ELEMENT STYLE: ANGULAR
CASE STYLE: SQUARE
MAXIMUM PRESSURE RATING: 7.0 POUNDS PER SQUARE INCH (PSI) LBS
ACCOMMODATED SHAFT DIAMETER: 2.344 INCHES NOMINAL IN
HOUSING BORE DIAMETER: 3.147 INCHES NOMINAL IN
SEAL WIDTH: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
MAXIMUM PRESSURE RATING7.0 POUNDS PER SQUARE INCH (PSI) LBS
ACCOMMODATED SHAFT DIAMETER2.344 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.147 INCHES NOMINAL IN
SEAL WIDTH0.375 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
M15513-16Interchangeable
interchangeable cross-reference
interchangeable
ATML1704BInterchangeable
interchangeable cross-reference
interchangeable
M6240-743210Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS4841Interchangeable
interchangeable cross-reference
interchangeable
AN929-4AInterchangeable
interchangeable cross-reference
interchangeable
29496Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 63X1603?
63X1603 is a SEAL,PLAIN ENCASED.
What parts can replace 63X1603?
There are 10 known substitutes for 63X1603: M15513-16, ATML1704B, M6240-743210 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63X1603?
63X1603 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-542-3470. This indicates validated use in U.S. government and defense supply chains.
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