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Technical Data Sheet

A3/78733/64 — SEAL RING,METAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A3/78733/64: SEAL RING,METAL.

The SEAL RING,METAL is a the manufacturer industrial component. Key specifications include overall_width: 1.6 MILLIMETERS NOMINAL MM, inside_diameter: 60.0 MILLIMETERS NOMINAL MM, outside_diameter: 77.0 MILLIMETERS NOMINAL MM, end_item_identification: AEL ANTENNA TYPE ASO-1563AAR, AELDEFENSE CORP. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-389-9435, 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
A3/78733/64
NSN: 5330-01-389-9435
FSC: 5330 — Packing and Gasket Materials
CAGE: K1384 — RACAL RADAR DEFENCE SYSTEMS LTD (GBR)
SPECIFICATIONS
overall_width1.6 MILLIMETERS NOMINAL MM
inside_diameter60.0 MILLIMETERS NOMINAL MM
outside_diameter77.0 MILLIMETERS NOMINAL MM
end_item_identificationAEL ANTENNA TYPE ASO-1563AAR, AELDEFENSE CORP
NSN5330-01-389-9435
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A3/78733/64 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
•
OUTSIDE DIAMETER: 77.0 MILLIMETERS NOMINAL MM
•
INSIDE DIAMETER: 60.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
OVERALL WIDTH1.6 MILLIMETERS NOMINAL MM
OUTSIDE DIAMETER77.0 MILLIMETERS NOMINAL MM
INSIDE DIAMETER60.0 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATIONAEL ANTENNA TYPE ASO-1563AAR, AELDEFENSE CORP
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 1
78733/64Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A3/78733/64?
A3/78733/64 is a SEAL RING,METAL.
What parts can replace A3/78733/64?
There is 1 known substitute for A3/78733/64: 78733/64. Substitute compatibility should be verified for your specific system.
What is the NSN for A3/78733/64?
A3/78733/64 is cataloged in the U.S. Government catalog under NSN 5330-01-389-9435. 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.