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425W34M1 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

425W34M1: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.438 INCHES NOMINAL IN, outside_diameter: 4.254 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 4.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-910-4584, 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
425W34M1
NSN: 5330-00-910-4584
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.438 INCHES NOMINAL IN
outside_diameter4.254 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter4.250 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter3.125 INCHES NOMINAL IN
NSN5330-00-910-4584
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 425W34M1 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: 0.438 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
OUTSIDE DIAMETER: 4.254 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 4.250 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 3.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.438 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
OUTSIDE DIAMETER4.254 INCHES NOMINAL IN
HOUSING BORE DIAMETER4.250 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER3.125 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
D25352PC23Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 425W34M1?
425W34M1 is a SEAL,PLAIN ENCASED.
What parts can replace 425W34M1?
There is 1 known substitute for 425W34M1: D25352PC23. Substitute compatibility should be verified for your specific system.
What is the NSN for 425W34M1?
425W34M1 is cataloged in the U.S. Government catalog under NSN 5330-00-910-4584. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.