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Technical Data Sheet
PartsTable / COMPONENT / 13026366
13026366 ✓ 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, case_style: SQUARE, seal_width: 0.266 INCHES NOMINAL IN, outside_diameter: 1.691 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 1.693 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 5330-00-786-4278, 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
13026366
NSN: 5330-00-786-4278
FSC: 5330
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.266 INCHES NOMINAL IN
outside_diameter1.691 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter1.693 INCHES NOMINAL IN
sealing_element_styleVERTICAL
accommodated_shaft_diameter1.250 INCHES NOMINAL IN
NSN5330-00-786-4278
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 13026366 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
•
HOUSING BORE DIAMETER: 1.693 INCHES NOMINAL IN
•
SEAL WIDTH: 0.266 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: STEEL CASE
•
SEALING ELEMENT STYLE: VERTICAL
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER1.693 INCHES NOMINAL IN
SEAL WIDTH0.266 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEVERTICAL
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.250 INCHES NOMINAL IN
OUTSIDE DIAMETER1.691 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
12336Interchangeable
interchangeable cross-reference
interchangeable
53212Interchangeable
interchangeable cross-reference
interchangeable
2410 1-3/4Interchangeable
interchangeable cross-reference
interchangeable
T-100Interchangeable
interchangeable cross-reference
interchangeable
20665001-16Interchangeable
interchangeable cross-reference
interchangeable
80EA1C1F1WL2N12SPARE3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13026366?
13026366 is a SEAL,PLAIN ENCASED.
What parts can replace 13026366?
There are 15 known substitutes for 13026366: 12336, 53212, 2410 1-3/4 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13026366?
13026366 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-786-4278. 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