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78178-019 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

78178-019: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: PLASTIC FLUOROCARBON OVERALL, temp_rating: 400.0 FAHRENHEIT DEGF, center_hole_diameter: 0.801 INCHES NOMINAL IN, end_item_identification: 2840-01-458-5361; ENGINE, AIRCRAFT, TURBO SHAFT, cross-sectional_shape_style: O-RING, part_name_assigned_by_controlling_agency: PACKING, PREFORMED, O-RING, AMS7280 TO 400 F. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-544-8769, 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
78178-019
NSN: 5330-01-544-8769
FSC: 5330 — Packing and Gasket Materials
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
materialPLASTIC FLUOROCARBON OVERALL
temp_rating400.0 FAHRENHEIT DEGF
center_hole_diameter0.801 INCHES NOMINAL IN
end_item_identification2840-01-458-5361; ENGINE, AIRCRAFT, TURBO SHAFT
cross-sectional_shape_styleO-RING
part_name_assigned_by_controlling_agencyPACKING, PREFORMED, O-RING, AMS7280 TO 400 F
NSN5330-01-544-8769
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 78178-019 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
•
TEMP RATING: 400.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
•
CENTER HOLE DIAMETER: 0.801 INCHES NOMINAL IN
•
MATERIAL: PLASTIC FLUOROCARBON OVERALL
TECHNICAL CHARACTERISTICS
TEMP RATING400.0 FAHRENHEIT DEGF
CROSS-SECTIONAL SHAPE STYLEO-RING
CENTER HOLE DIAMETER0.801 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPACKING, PREFORMED, O-RING, AMS7280 TO 400 F
END ITEM IDENTIFICATION2840-01-458-5361; ENGINE, AIRCRAFT, TURBO SHAFT
MATERIALPLASTIC FLUOROCARBON OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78178-019?
78178-019 is a PACKING,PREFORMED.
What is the NSN for 78178-019?
78178-019 is cataloged in the U.S. Government catalog under NSN 5330-01-544-8769. 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.