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Technical Data Sheet
PartsTable / O-RING / 212-70 FDA BUNA
212-70 FDA BUNA ✓ 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 cross-sectional_height: 0.125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-062-3228, 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
212-70 FDA BUNA
NSN: 5331-01-062-3228
FSC: 5331 — O-RING
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
cross-sectional_height0.125 INCHES NOMINAL IN
NSN5331-01-062-3228
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 212-70 FDA BUNA 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
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
0CN1295SF590Interchangeable
interchangeable cross-reference
interchangeable
58923Interchangeable
interchangeable cross-reference
interchangeable
MIL-T-16644Interchangeable
interchangeable cross-reference
interchangeable
10512634Interchangeable
interchangeable cross-reference
interchangeable
217706Interchangeable
interchangeable cross-reference
interchangeable
75016Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 212-70 FDA BUNA?
212-70 FDA BUNA is a O-RING.
What parts can replace 212-70 FDA BUNA?
There are 6 known substitutes for 212-70 FDA BUNA: 0CN1295SF590, 58923, MIL-T-16644 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 212-70 FDA BUNA?
212-70 FDA BUNA is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-062-3228. 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