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Technical Data Sheet
1528T25 ✓ 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: RECESSED, seal_width: 0.500 INCHES NOMINAL IN, housing_bore_diameter: 5.500 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 4.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-686-2107, 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
1528T25
NSN: 5330-00-686-2107
FSC: 5330
CAGE: 72452 — BRAD FOOTE GEAR WORKS INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
seal_width0.500 INCHES NOMINAL IN
housing_bore_diameter5.500 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter4.500 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-686-2107
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1528T25 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
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
HOUSING BORE DIAMETER: 5.500 INCHES NOMINAL IN
SEAL WIDTH: 0.500 INCHES NOMINAL IN
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
CASE STYLE: RECESSED
ACCOMMODATED SHAFT DIAMETER: 4.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
HOUSING BORE DIAMETER5.500 INCHES NOMINAL IN
SEAL WIDTH0.500 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
MATERIALSTEEL CASE
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER4.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
9170LPDInterchangeable
interchangeable cross-reference
interchangeable
39194-45Interchangeable
interchangeable cross-reference
interchangeable
2753Interchangeable
interchangeable cross-reference
interchangeable
AA-233-10XInterchangeable
interchangeable cross-reference
interchangeable
20-000303-005Interchangeable
interchangeable cross-reference
interchangeable
10513741Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1528T25?
1528T25 is a SEAL,PLAIN ENCASED.
What parts can replace 1528T25?
There are 10 known substitutes for 1528T25: 9170LPD, 39194-45, 2753 and 7 more. Substitute compatibility should be verified for your specific system.
Is 1528T25 still available?
1528T25 is currently cancelled.
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