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Technical Data Sheet
PartsTable / COMPONENT / 209-20-1
209-20-1 ✓ 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 GEARCASE-MOTOR is a the manufacturer industrial component. Key specifications include end_item_identification: AN/MPN-14K. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-7099, 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
209-20-1
NSN: 5340-00-598-7099
FSC: 5340
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
end_item_identificationAN/MPN-14K
NSN5340-00-598-7099
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 209-20-1 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
•
BOTTOM FLANGE WIDTH: 0.125 INCHES NOMINAL IN
•
OUTSIDE/TOP FLANGE DIAMETER: 0.500 INCHES NOMINAL IN
•
TOP FLANGE WIDTH: 0.156 INCHES NOMINAL IN
•
COLOR: BLACK
•
GROOVE DIAMETER: 0.250 INCHES NOMINAL IN
•
BOTTOM FLANGE DIAMETER: 0.313 INCHES NOMINAL IN
•
STYLE DESIGNATOR: DOUBLE FLANGE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.344 INCHES NOMINAL IN
BOTTOM FLANGE WIDTH0.125 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.500 INCHES NOMINAL IN
TOP FLANGE WIDTH0.156 INCHES NOMINAL IN
COLORBLACK
GROOVE DIAMETER0.250 INCHES NOMINAL IN
BOTTOM FLANGE DIAMETER0.313 INCHES NOMINAL IN
STYLE DESIGNATORDOUBLE FLANGE
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
1561Interchangeable
interchangeable cross-reference
interchangeable
1561GSKT3INInterchangeable
interchangeable cross-reference
interchangeable
1561HInterchangeable
interchangeable cross-reference
interchangeable
10116602Interchangeable
interchangeable cross-reference
interchangeable
3F-9556Interchangeable
interchangeable cross-reference
interchangeable
1915Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 209-20-1?
209-20-1 is a GEARCASE-MOTOR.
What parts can replace 209-20-1?
There are 21 known substitutes for 209-20-1: 1561, 1561GSKT3IN, 1561H and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 209-20-1?
209-20-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-7099. 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