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Technical Data Sheet
PartsTable / O-RING / B7118-7
B7118-7 ✓ 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: RUBBER BUTADIENE-STYRENE CLASS SBR, center_hole_diameter: 22.282 INCHES MINIMUM AND 22.594 INCHES MAXIMUM IN, cross-sectional_height: 0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-860-8023, 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
B7118-7
NSN: 5331-00-860-8023
FSC: 5331 — O-RING
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR
center_hole_diameter22.282 INCHES MINIMUM AND 22.594 INCHES MAXIMUM IN
cross-sectional_height0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
NSN5331-00-860-8023
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B7118-7 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
•
CENTER HOLE DIAMETER: 22.282 INCHES MINIMUM AND 22.594 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-STYRENE CLASS SBR
•
CROSS-SECTIONAL HEIGHT: 0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER22.282 INCHES MINIMUM AND 22.594 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR
CROSS-SECTIONAL HEIGHT0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
FIG1377Interchangeable
interchangeable cross-reference
interchangeable
0427-2-1-2INInterchangeable
interchangeable cross-reference
interchangeable
2377-2-1/2Interchangeable
interchangeable cross-reference
interchangeable
1438Interchangeable
interchangeable cross-reference
interchangeable
90-39074Interchangeable
interchangeable cross-reference
interchangeable
F46437Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B7118-7?
B7118-7 is a O-RING.
What parts can replace B7118-7?
There are 22 known substitutes for B7118-7: FIG1377, 0427-2-1-2IN, 2377-2-1/2 and 19 more. Substitute compatibility should be verified for your specific system.
Is B7118-7 still available?
B7118-7 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026