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Technical Data Sheet
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112-8186 — 112-8186

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

112-8186: 112-8186.

The 112-8186 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-539-6566, 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
112-8186
NSN: 5331-01-539-6566
FSC: 5331 — O-ring
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
Part Number112-8186
NSN5331-01-539-6566
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 112-8186 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: 88.2 MILLIMETERS NOMINAL MM
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESMATERIAL HYDROGENATED NITRILE (HNBR) 78 DURO
CENTER HOLE DIAMETER88.2 MILLIMETERS NOMINAL MM
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 112-8186?
112-8186 is a 112-8186.
What is the NSN for 112-8186?
112-8186 is cataloged in the U.S. Government catalog under NSN 5331-01-539-6566. This indicates validated use in U.S. government and defense supply chains.
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