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Technical Data Sheet
PartsTable / COMPONENT / 531912-18
531912-18 ✓ 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 SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-266-3851, 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
531912-18
NSN: 5330-01-266-3851
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
NSN5330-01-266-3851
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 531912-18 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
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
MATERIALSTEEL CORROSION RESISTING SPRING
MATERIALSTEEL CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
640479Interchangeable
interchangeable cross-reference
interchangeable
11689Interchangeable
interchangeable cross-reference
interchangeable
28JR106-6Interchangeable
interchangeable cross-reference
interchangeable
5740010Interchangeable
interchangeable cross-reference
interchangeable
12338062Interchangeable
interchangeable cross-reference
interchangeable
01308Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 531912-18?
531912-18 is a SEAL,PLAIN ENCASED.
What parts can replace 531912-18?
There are 7 known substitutes for 531912-18: 640479, 11689, 28JR106-6 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 531912-18?
531912-18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-266-3851. 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