PartsTable / COMPONENT / QD478A
QD478A
✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: PAPER OVERALL, hole_diameter: 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 6.938 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 5.344 INCHES MINIMUM AND 5.375 INCHES MAXIMUM IN, bolt_circle_diameter: 6.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-292-1504, 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
QD478A
NSN: 5330-00-292-1504 FSC: 5330 CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
material PAPER OVERALL hole_diameter 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN outside_diameter 6.938 INCHES NOMINAL IN style_designator CIRCULAR aperture_diameter 5.344 INCHES MINIMUM AND 5.375 INCHES MAXIMUM IN bolt_hole_quantity 4 bolt_circle_diameter 6.125 INCHES NOMINAL IN cross-sectional_thickness 0.006 INCHES MINIMUM AND 0.007 INCHES MAXIMUM IN cross-sectional_shape_style SOLID SINGLE OR COMPOSITION material_document_and_classification MIL-G-12803 F313000-5 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL NSN 5330-00-292-1504
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: QD478A
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
• HOLE DIAMETER: 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
• CROSS-SECTIONAL THICKNESS: 0.006 INCHES MINIMUM AND 0.007 INCHES MAXIMUM IN
• MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803 F313000-5 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
• BOLT CIRCLE DIAMETER: 6.125 INCHES NOMINAL IN
• CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
• STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER 0.469 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN CROSS-SECTIONAL THICKNESS 0.006 INCHES MINIMUM AND 0.007 INCHES MAXIMUM IN MATERIAL PAPER OVERALL MATERIAL DOCUMENT AND CLASSIFICATION MIL-G-12803 F313000-5 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL BOLT CIRCLE DIAMETER 6.125 INCHES NOMINAL IN CROSS-SECTIONAL SHAPE STYLE SOLID SINGLE OR COMPOSITION STYLE DESIGNATOR CIRCULAR BOLT HOLE QUANTITY 4 APERTURE DIAMETER 5.344 INCHES MINIMUM AND 5.375 INCHES MAXIMUM IN OUTSIDE DIAMETER 6.938 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
31-2743-1 Interchangeable interchangeable cross-reference
interchangeable
EP17 Interchangeable interchangeable cross-reference
interchangeable
GC810H1 Interchangeable interchangeable cross-reference
interchangeable
V350-2743-1 Interchangeable interchangeable cross-reference
interchangeable
2743-1 Interchangeable interchangeable cross-reference
interchangeable
60818-1 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is QD478A?
QD478A is a GASKET.
What parts can replace QD478A?
There are 11 known substitutes for QD478A: 31-2743-1, EP17, GC810H1 and 8 more. Substitute compatibility should be verified for your specific system.
Is QD478A still available?
QD478A is currently cancelled.