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Technical Data Sheet
PartsTable / COMPONENT / 725581
725581 ✓ 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 SEALING ELEMENT, case_style: RECESSED, seal_width: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, outside_diameter: 2.004 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 2.003 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 5330-00-933-9717, 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
725581
NSN: 5330-00-933-9717
FSC: 5330
CAGE: 35311 — AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV (USA)
SPECIFICATIONS
materialRUBBER SEALING ELEMENT
case_styleRECESSED
seal_width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
outside_diameter2.004 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.003 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.250 INCHES NOMINAL IN
NSN5330-00-933-9717
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 725581 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
•
SEALING ELEMENT STYLE: ANGULAR
•
CASE STYLE: RECESSED
•
SEAL WIDTH: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
•
MATERIAL: STEEL CASE
•
OUTSIDE DIAMETER: 2.004 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT DIAMETER: 1.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
CASE STYLERECESSED
SEAL WIDTH0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
MATERIALSTEEL CASE
MATERIALRUBBER SEALING ELEMENT
OUTSIDE DIAMETER2.004 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER1.250 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
HOUSING BORE DIAMETER2.003 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
12458Interchangeable
interchangeable cross-reference
interchangeable
060777Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 725581?
725581 is a SEAL,PLAIN ENCASED.
What parts can replace 725581?
There are 2 known substitutes for 725581: 12458, 060777. Substitute compatibility should be verified for your specific system.
What is the NSN for 725581?
725581 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-933-9717. 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