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Technical Data Sheet
PartsTable / COMPONENT / 258511AU
258511AU ✓ 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: LEATHER SEALING ELEMENT, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, housing_bore_diameter: 2.374 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 1.500 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 5330-00-827-2745, 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
258511AU
NSN: 5330-00-827-2745
FSC: 5330
CAGE: 83299 — HYSTER-YALE GROUP, INC. DBA YALE MATERIALS HANDLING (USA)
SPECIFICATIONS
materialLEATHER SEALING ELEMENT
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
housing_bore_diameter2.374 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.500 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-827-2745
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 258511AU 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
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.500 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.374 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
MATERIAL: STEEL CASE
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.375 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.500 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.374 INCHES NOMINAL IN
CASE STYLESQUARE
MATERIALSTEEL CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
MATERIALLEATHER SEALING ELEMENT
SEALING ELEMENT STYLEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
14980Interchangeable
interchangeable cross-reference
interchangeable
NW14980Interchangeable
interchangeable cross-reference
interchangeable
A1205H918XInterchangeable
interchangeable cross-reference
interchangeable
P88Interchangeable
interchangeable cross-reference
interchangeable
X5008/12/149/80Interchangeable
interchangeable cross-reference
interchangeable
149 ITEM 80Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 258511AU?
258511AU is a SEAL,PLAIN ENCASED.
What parts can replace 258511AU?
There are 8 known substitutes for 258511AU: 14980, NW14980, A1205H918X and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 258511AU?
258511AU is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-827-2745. 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