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Technical Data Sheet
9021749 ✓ 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 CASE, case_style: SQUARE, seal_width: 0.812 INCHES NOMINAL IN, housing_bore_diameter: 4.501 INCHES NOMINAL IN, sealing_element_style: ANGULAR-OPPOSED, accommodated_shaft_diameter: 3.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-599-6452, 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
9021749
NSN: 5330-00-599-6452
FSC: 5330
CAGE: 30379 — EUCLID INC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.812 INCHES NOMINAL IN
housing_bore_diameter4.501 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter3.500 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-599-6452
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9021749 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
HOUSING BORE DIAMETER: 4.501 INCHES NOMINAL IN
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
MATERIAL: STEEL CASE
ACCOMMODATED SHAFT DIAMETER: 3.500 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
SEAL WIDTH: 0.812 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER4.501 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT B
ACCOMMODATED SHAFT DIAMETER3.500 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEAL WIDTH0.812 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT A
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
421-50Interchangeable
interchangeable cross-reference
interchangeable
1093-668Interchangeable
interchangeable cross-reference
interchangeable
206909PC4Interchangeable
interchangeable cross-reference
interchangeable
B25305Interchangeable
interchangeable cross-reference
interchangeable
25305Interchangeable
interchangeable cross-reference
interchangeable
21749Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9021749?
9021749 is a SEAL,PLAIN ENCASED.
What parts can replace 9021749?
There are 15 known substitutes for 9021749: 421-50, 1093-668, 206909PC4 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9021749?
9021749 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-599-6452. This indicates validated use in U.S. government and defense supply chains.
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