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Technical Data Sheet
PartsTable / COMPONENT / 8978NPC3
8978NPC3 ✓ 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 gage_thickness: 0.019 INCHES NOMINAL IN, outside_diameter: 1.719 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.156 INCHES NOMINAL IN, center_to_center_distance: 0.062 INCHES NOMINAL IN, cross-sectional_thickness: 0.025 INCHES NOMINAL 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 5330-00-618-9824, 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
8978NPC3
NSN: 5330-00-618-9824
FSC: 5330
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1017 OR STEEL COMP 1015 OR STEEL COMP 1012 OR STEEL COMP 1010 OR STEEL COMP 1009 OR STEEL COMP 1008 AND STEEL COMP 1006 OVERALL
gage_thickness0.019 INCHES NOMINAL IN
outside_diameter1.719 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.156 INCHES NOMINAL IN
center_to_center_distance0.062 INCHES NOMINAL IN
cross-sectional_thickness0.025 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL
NSN5330-00-618-9824
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8978NPC3 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: 1.156 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE: 0.062 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.719 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1017 OR STEEL COMP 1015 OR STEEL COMP 1012 OR STEEL COMP 1010 OR STEEL COMP 1009 OR STEEL COMP 1008 AND STEEL COMP 1006 OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL THICKNESS: 0.025 INCHES NOMINAL IN
•
GAGE THICKNESS: 0.019 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER1.156 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE0.062 INCHES NOMINAL IN
OUTSIDE DIAMETER1.719 INCHES NOMINAL IN
MATERIALSTEEL COMP 1017 OR STEEL COMP 1015 OR STEEL COMP 1012 OR STEEL COMP 1010 OR STEEL COMP 1009 OR STEEL COMP 1008 AND STEEL COMP 1006 OVERALL
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL THICKNESS0.025 INCHES NOMINAL IN
GAGE THICKNESS0.019 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
R11149Interchangeable
interchangeable cross-reference
interchangeable
11149Interchangeable
interchangeable cross-reference
interchangeable
L2Interchangeable
interchangeable cross-reference
interchangeable
CS1482105Interchangeable
interchangeable cross-reference
interchangeable
S11-149Interchangeable
interchangeable cross-reference
interchangeable
10272Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8978NPC3?
8978NPC3 is a GASKET.
What parts can replace 8978NPC3?
There are 13 known substitutes for 8978NPC3: R11149, 11149, L2 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8978NPC3?
8978NPC3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-618-9824. 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