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S3145 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND COPPER OVERALL, outside_diameter: 1.688 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.375 INCHES NOMINAL IN, cross-sectional_thickness: 0.094 INCHES NOMINAL IN, cross-sectional_shape_style: METAL WITH SOFT FILLER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-3226, 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
S3145
NSN: 5330-00-251-3226
FSC: 5330
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialASBESTOS AND COPPER OVERALL
outside_diameter1.688 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.375 INCHES NOMINAL IN
cross-sectional_thickness0.094 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WITH SOFT FILLER
NSN5330-00-251-3226
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S3145 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
•
APERTURE DIAMETER: 1.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL WITH SOFT FILLER
•
OUTSIDE DIAMETER: 1.688 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS AND COPPER OVERALL
•
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER1.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL WITH SOFT FILLER
OUTSIDE DIAMETER1.688 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL IN
MATERIALASBESTOS AND COPPER OVERALL
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
331Interchangeable
interchangeable cross-reference
interchangeable
2213Interchangeable
interchangeable cross-reference
interchangeable
N-YGN-34Interchangeable
interchangeable cross-reference
interchangeable
64Interchangeable
interchangeable cross-reference
interchangeable
0901725-2Interchangeable
interchangeable cross-reference
interchangeable
426546Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S3145?
S3145 is a GASKET.
What parts can replace S3145?
There are 19 known substitutes for S3145: 331, 2213, N-YGN-34 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S3145?
S3145 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-3226. 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