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3786711 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3786711: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 20.63 MILLIMETERS NOMINAL MM, cross-sectional_height: 2.62 MILLIMETERS NOMINAL MM, end_item_identification: V12-80;52 APL UPDATE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-499-3733, 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
3786711
NSN: 5331-01-499-3733
FSC: 5331 — O-ring
CAGE: 0BLJ7 — PARKER HANNIFIN CORP HYDRAULIC VALVE DIV (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter20.63 MILLIMETERS NOMINAL MM
cross-sectional_height2.62 MILLIMETERS NOMINAL MM
end_item_identificationV12-80;52 APL UPDATE
NSN5331-01-499-3733
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3786711 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: 2.62 MILLIMETERS NOMINAL MM
•
CENTER HOLE DIAMETER: 20.63 MILLIMETERS NOMINAL MM
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT2.62 MILLIMETERS NOMINAL MM
CENTER HOLE DIAMETER20.63 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONV12-80;52 APL UPDATE
MATERIALRUBBER FLUOROCARBON CLASS FPM
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 2
V12-80 ITEM 775Reference document
Same NSN cross-reference
Reference document — Secondary reference
3793534Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3786711?
3786711 is a O-RING.
What parts can replace 3786711?
There are 2 known substitutes for 3786711: V12-80 ITEM 775, 3793534. Substitute compatibility should be verified for your specific system.
What is the NSN for 3786711?
3786711 is cataloged in the U.S. Government catalog under NSN 5331-01-499-3733. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.