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Technical Data Sheet
PartsTable / O-RING / AS568-216
AS568-216 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include outside_diameter: 1.316 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN, center_hole_diameter: 1.097 INCHES MINIMUM AND 1.121 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN, end_item_identification: 4940-016580431, part_name_assigned_by_controlling_agency: 0-RING, CONDUCTIVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-078-7890, 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
AS568-216
NSN: 5331-00-078-7890
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
outside_diameter1.316 INCHES MINIMUM AND 1.407 INCHES MAXIMUM IN
center_hole_diameter1.097 INCHES MINIMUM AND 1.121 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
end_item_identification4940-016580431
part_name_assigned_by_controlling_agency0-RING, CONDUCTIVE
NSN5331-00-078-7890
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AS568-216 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: 1.387 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
CENTER HOLE DIAMETER: 1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.387 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
SPECIAL FEATURESSYNTHETIC RUBBER MIL-G-21610C TYPE 1
CENTER HOLE DIAMETER1.103 INCHES MINIMUM AND 1.115 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
820-4-50001-79Interchangeable
interchangeable cross-reference
interchangeable
MILG21610Interchangeable
interchangeable cross-reference
interchangeable
820-4-80002-524Interchangeable
interchangeable cross-reference
interchangeable
820-4-80002PC525Interchangeable
interchangeable cross-reference
interchangeable
820-4-80002-525Interchangeable
interchangeable cross-reference
interchangeable
75G8R6012Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS568-216?
AS568-216 is a O-RING.
What parts can replace AS568-216?
There are 19 known substitutes for AS568-216: 820-4-50001-79, MILG21610, 820-4-80002-524 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS568-216?
AS568-216 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-078-7890. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026