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Technical Data Sheet
PartsTable / O-RING / BACP11L218
BACP11L218 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC, center_hole_diameter: 1.219 INCHES NOMINAL IN, cross-sectional_height: 0.141 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 5331-01-071-8790, 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
BACP11L218
NSN: 5331-01-071-8790
FSC: 5331 — O-RING
CAGE: 17765 — THE BOEING COMPANY DIV COMMERCIAL (USA)
SPECIFICATIONS
materialPLASTIC
center_hole_diameter1.219 INCHES NOMINAL IN
cross-sectional_height0.141 INCHES NOMINAL IN
NSN5331-01-071-8790
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: BACP11L218 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
•
CROSS-SECTIONAL HEIGHT: 0.141 INCHES NOMINAL IN
•
MATERIAL: PLASTIC
•
CENTER HOLE DIAMETER: 1.219 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.141 INCHES NOMINAL IN
MATERIALPLASTIC
CENTER HOLE DIAMETER1.219 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
B7DEInterchangeable
interchangeable cross-reference
interchangeable
1101 + 5101 + 5508Interchangeable
interchangeable cross-reference
interchangeable
22-18Interchangeable
interchangeable cross-reference
interchangeable
591Interchangeable
interchangeable cross-reference
interchangeable
3018684Interchangeable
interchangeable cross-reference
interchangeable
PA6080Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BACP11L218?
BACP11L218 is a O-RING.
What parts can replace BACP11L218?
There are 26 known substitutes for BACP11L218: B7DE, 1101 + 5101 + 5508, 22-18 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BACP11L218?
BACP11L218 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-071-8790. 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