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78178-117 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

78178-117: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER, center_hole_diameter: 0.793 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN, elongation_percentage: 300 MAXIMUM, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-039-7579, 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
78178-117
NSN: 5331-01-039-7579
FSC: 5331 — O-ring
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
materialRUBBER
center_hole_diameter0.793 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
elongation_percentage300 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-01-039-7579
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78178-117 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: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 300 MAXIMUM
•
CENTER HOLE DIAMETER: 0.793 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
ELONGATION PERCENTAGE300 MAXIMUM
CENTER HOLE DIAMETER0.793 INCHES MINIMUM AND 0.805 INCHES MAXIMUM IN
MATERIALRUBBER
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
10159932Reference document
Same NSN cross-reference
Reference document — Informative reference only
MILR2765-117ESReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78178-117?
78178-117 is a O-RING.
What parts can replace 78178-117?
There are 2 known substitutes for 78178-117: 10159932, MILR2765-117ES. Substitute compatibility should be verified for your specific system.
What is the NSN for 78178-117?
78178-117 is cataloged in the U.S. Government catalog under NSN 5331-01-039-7579. This indicates validated use in U.S. government and defense supply chains.
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