PartsTable
Technical Data Sheet
PartsTable / O-RING / 8419-7446-70
8419-7446-70 ✓ 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. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-972-3172, 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
8419-7446-70
NSN: 5331-00-972-3172
FSC: 5331 — O-RING
CAGE: 81168 — STROHMEYER, JULIE A. DBA JULIE A. STROHMEYER (USA)
SPECIFICATIONS
Part Number8419-7446-70
NSN5331-00-972-3172
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8419-7446-70 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
BA419UInterchangeable
interchangeable cross-reference
interchangeable
MIL-B-18Interchangeable
interchangeable cross-reference
interchangeable
MIL-B-18/97BA-419/UInterchangeable
interchangeable cross-reference
interchangeable
225147MInterchangeable
interchangeable cross-reference
interchangeable
8419Interchangeable
interchangeable cross-reference
interchangeable
841900Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8419-7446-70?
8419-7446-70 is a O-RING.
What parts can replace 8419-7446-70?
There are 9 known substitutes for 8419-7446-70: BA419U, MIL-B-18, MIL-B-18/97BA-419/U and 6 more. Substitute compatibility should be verified for your specific system.
Is 8419-7446-70 still available?
8419-7446-70 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026