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PartsTable / COMPONENT / 350W525
350W525 ✓ 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: 0.468 INCHES NOMINAL IN, temp_rating: -50.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF, housing_bore_diameter: 5.256 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-140-4907, 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
350W525
NSN: 5330-00-140-4907
FSC: 5330
CAGE: 97674 — CONE DRIVE OPERATIONS INC (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.468 INCHES NOMINAL IN
temp_rating-50.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
housing_bore_diameter5.256 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter3.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-140-4907
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 350W525 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
•
TEMP RATING: -50.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
•
ACCOMMODATED SHAFT DIAMETER: 3.625 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
•
SEALING ELEMENT STYLE: ANGULAR
•
SEAL WIDTH: 0.468 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-50.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT DIAMETER3.625 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
MATERIALSTEEL CASE
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.468 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
HOUSING BORE DIAMETER5.256 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
RME-U-0190Interchangeable
interchangeable cross-reference
interchangeable
5551Interchangeable
interchangeable cross-reference
interchangeable
460A400FNInterchangeable
interchangeable cross-reference
interchangeable
14U1484PCDD5551Interchangeable
interchangeable cross-reference
interchangeable
7355036Interchangeable
interchangeable cross-reference
interchangeable
MULTIGRADE FB SWInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 350W525?
350W525 is a SEAL,PLAIN ENCASED.
What parts can replace 350W525?
There are 10 known substitutes for 350W525: RME-U-0190, 5551, 460A400FN and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 350W525?
350W525 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-140-4907. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026