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Technical Data Sheet
PartsTable / O-RING / AMD3212N
AMD3212N ✓ 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 material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 60.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 6.444 INCHES MINIMUM AND 6.524 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM 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 5331-01-400-5859, 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
AMD3212N
NSN: 5331-01-400-5859
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating60.0 SHORE DUROMETER A NOMINAL
center_hole_diameter6.444 INCHES MINIMUM AND 6.524 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-01-400-5859
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AMD3212N 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 6.444 INCHES MINIMUM AND 6.524 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
HARDNESS RATING: 60.0 SHORE DUROMETER A NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER6.444 INCHES MINIMUM AND 6.524 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
HARDNESS RATING60.0 SHORE DUROMETER A NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
MIL-R-3533Interchangeable
interchangeable cross-reference
interchangeable
264681R1Interchangeable
interchangeable cross-reference
interchangeable
947J241ITEM60Interchangeable
Same NIIN cross-reference
interchangeable
AS568B-260Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AMD3212N?
AMD3212N is a O-RING.
What parts can replace AMD3212N?
There are 4 known substitutes for AMD3212N: MIL-R-3533, 264681R1, 947J241ITEM60 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AMD3212N?
AMD3212N is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-400-5859. 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