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212-11646 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

212-11646: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ, center_hole_diameter: 0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN, cross-sectional_height: 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-031-0790, 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
212-11646
NSN: 5331-01-031-0790
FSC: 5331 — O-ring
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER FLUOROSILICONE CLASS FQ
center_hole_diameter0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
cross-sectional_height0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-01-031-0790
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 212-11646 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: 0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.133 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.849 INCHES MINIMUM AND 0.869 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROSILICONE CLASS FQ
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 8
2-212L608-65Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-212LM152-60Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
L0946 2-212Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-212L946-60Reference document
Same NSN cross-reference
Reference document — Secondary reference
BACP11AC212Reference document
Same NSN cross-reference
Reference document — Secondary reference
B67112-212Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 212-11646?
212-11646 is a O-RING.
What parts can replace 212-11646?
There are 8 known substitutes for 212-11646: 2-212L608-65, 2-212LM152-60, L0946 2-212 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 212-11646?
212-11646 is cataloged in the U.S. Government catalog under NSN 5331-01-031-0790. 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.