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L30578 ✓ 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: STEEL OVERALL, outside_diameter: 2.875 INCHES MINIMUM AND 2.879 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 2.250 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, cross-sectional_thickness: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM 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 5330-01-069-5255, 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
L30578
NSN: 5330-01-069-5255
FSC: 5330
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
outside_diameter2.875 INCHES MINIMUM AND 2.879 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter2.250 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
cross-sectional_thickness0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
cross-sectional_shape_styleRECTANGULAR METAL
NSN5330-01-069-5255
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: L30578 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
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL THICKNESS: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR METAL
•
OUTSIDE DIAMETER: 2.875 INCHES MINIMUM AND 2.879 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 2.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL OVERALL
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL THICKNESS0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR METAL
OUTSIDE DIAMETER2.875 INCHES MINIMUM AND 2.879 INCHES MAXIMUM IN
APERTURE DIAMETER2.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
72-6970-616Interchangeable
interchangeable cross-reference
interchangeable
RS22328Interchangeable
interchangeable cross-reference
interchangeable
804AInterchangeable
interchangeable cross-reference
interchangeable
3A7218Interchangeable
interchangeable cross-reference
interchangeable
490695C91Interchangeable
interchangeable cross-reference
interchangeable
3A7281Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L30578?
L30578 is a GASKET.
What parts can replace L30578?
There are 14 known substitutes for L30578: 72-6970-616, RS22328, 804A and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L30578?
L30578 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-069-5255. 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