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Technical Data Sheet
PB425 ✓ 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 OR RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.359 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, outside_diameter: 2.254 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 1.499 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-285-9462, 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
PB425
NSN: 5330-00-285-9462
FSC: 5330
CAGE: 35211 — LAUSON DIVISION OF TECUMSEH PRODUCTS CO (USA)
SPECIFICATIONS
materialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.359 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
outside_diameter2.254 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter1.499 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.062 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-285-9462
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PB425 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: 1.499 INCHES NOMINAL IN
OUTSIDE DIAMETER: 2.254 INCHES NOMINAL IN
MATERIAL: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
SEAL WIDTH: 0.359 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
SURFACE TREATMENT: PLASTIC CASE
ACCOMMODATED SHAFT DIAMETER: 1.062 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER1.499 INCHES NOMINAL IN
OUTSIDE DIAMETER2.254 INCHES NOMINAL IN
MATERIALLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
SEAL WIDTH0.359 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
SURFACE TREATMENTPLASTIC CASE
ACCOMMODATED SHAFT DIAMETER1.062 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
21154Interchangeable
interchangeable cross-reference
interchangeable
13618Interchangeable
interchangeable cross-reference
interchangeable
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
FS10101-0606Interchangeable
interchangeable cross-reference
interchangeable
M175Interchangeable
interchangeable cross-reference
interchangeable
3591-114Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PB425?
PB425 is a SEAL,PLAIN ENCASED.
What parts can replace PB425?
There are 25 known substitutes for PB425: 21154, 13618, QQ-A-200/3 and 22 more. Substitute compatibility should be verified for your specific system.
Is PB425 still available?
PB425 is currently cancelled.
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